2. N.E. Christensen, "An APW Calculation for Silver", phys. stat. sol. 31, 635 (1969).

3. N.E. Christensen and B.O. Seraphin, "Relativistic Band Calculation and the Optical Properties of Gold", Solid State Commun. 8, 1221 (1970).

4. C.K. Bak, N.E. Christensen, F. Greisen, J.O. Henningsen, P.K. Larsen, J. Mygind, N. Falsig Pedersen, and K. Saermark, "Comparison between bandstructure and Fermi-surface calculations and experimental results on optical properties of solids and propagation of electro-magnetic waves through solids", Proceedings of the it 4th Nordic Solid State Conference, Univ. Turku p. 39 (1970).

5. N.E. Christensen and B.O. Seraphin, "Optical properties and the energy-band structure of gold, p. 39 of Proc. of the 1971 Spring Meeting of the Optical Society of America, (1971).

6. N.E. Christensen and B.O. Seraphin, "Relativistic Band Calculation and the Optical Properties of Gold", Phys. Rev. B 4, 3321 (1971).

7. N.E. Christensen, "Photoemission Properties of Gold", Phys. Letters 35A, 206 (1971).

8. N.E. Christensen, "The Electronic Structure of Silver and Gold as Calculated by the APW and RAPW Methods", Rep. 75 Phys. Lab. I, Techn. Univ. of Denmark, 1970 (PhD thesis).

9. N.E. Christensen, "Energy Band Structure of Molybdenum and Vanadium", Rep. 95, Phys. Lab. I, Techn. Univ. of Denmark (1971).

10. N.E. Christensen, "Anisotropy of the Electron-Phonon Interaction in Gold", Solid State Commun. 9, 749 (1971).

11. N.E. Christensen, "Current RAPW Calculations for Silver, Molybdenum and Vanadium", p. 155 in "Computational Solid State Physics" (Eds. F. Herman, N.W. Dalton and T. Koehler, Plenum 1972).

12. N.E. Christensen, "Primary Photoemission Spectra of Gold and their Relation to the Band Structure", phys. stat. sol. (b) 52, 241 (1972).

13. N.E. Christensen, "The Band Structure of Silver and Optical Interband Transitions", phys. stat. sol. (b) 54, 551 (1972).

14. N.E. Christensen, "The Band Structure of Rhodium and its Relation to Photoemission Experiments", phys. stat. sol. (b) 55, 117 (1973).

15. D.S. Falk, J.O. Henningsen, H.L. Skriver, and N.E. Christensen, "Point Measurements of Fermi Velocities by a Time-of-Flight Method", Phys. Rev. B 6, 377 (1972).

16. H.L. Skriver and N.E. Christensen, "Band Structure and Fermi-Surface Properties of Ordered beta-Brass", Phys. Rev. B 8, 3778 (1973).

17. N.E. Christensen, "Surface and bulk contributions to the photoemission spectra of tungsten single crystals", Proc. of the "European Physical Society Study Conference on Metal Surfaces", p. 37, (1973).

18. B. Feuerbacher, B. Fitton, and N.E. Christensen, "Directional photoemission as a tool for studying electron states on metal surfaces", Proc. of the "European Physical Society Study Conference on Metal Surfaces", p.23, (1973).

19. N.E. Christensen and B. Feuerbacher, "Volume and Surface Photoemission from Tungsten. I. Calculation of Band Structure and Emission Spectra", Phys. Rev. B 10, 2349 (1974).

20. B. Feuerbacher and N.E. Christensen, "Volume and Surface Photoemission from Tungsten. II. Experiment", Phys. Rev. B 10, 2373 (1974).

21. N.E. Christensen, "High-Energy Band Structure of Gold", Phys. Rev. B 13, 2698 (1976).

22. N.E. Christensen, "Angle-Resolved Photoemission from Silver", in European Space Agency, Publ. 118 (ed. by R.F. Willis et al., 1976).

23. R.F. Willis and N.E. Christensen, "Surface and Bulk Effects in SEE Spectra from Tungsten Crystals", in European Space Agency, Publ. 118 (ed. by R.F. Willis et al., 1976).

24. N.E. Christensen, "Electronic Structure of Palladium and its Relation to UV Spectroscopy", Phys. Rev. B 14, 3446 (1976)).

25. A. Barrie and N.E. Christensen, "High Resolution X-ray Photoemission Spectra of Silver", Phys. Rev. B 14, 2442 (1976).

26. R.C. Cinti, E. Al Khoury, B.K. Chakraverty and N.E. Christensen, "Directional UV Photoemission from (100) and (110) Molybdenum Surfaces", Phys. Rev. B 14, 3296 (1976).

27. N.E. Christensen and R.F. Willis, "Surface Resonance Phenomena in Secondary-Electron Emission from Tungsten Single Crystals", Proc. of "Nordic Meeting on UV-Photoemission", May 23-24, 1977, Gothenburg, Sweden (Ed. P.O. Nilsson).

28. R.F. Willis and N.E. Christensen, "Surface Resonance Phenomena in Secondary-Electron Emission from Tungsten Crystals", p. 469 in: Proceedings of the "Seventh International Vacuum Congress and the Third International Conference on Solid Surfaces" (Vienna, 1977).

29. R.F. Willis, B. Feuerbacher and N.E. Christensen, "Surface Resonance Bands on (001)W: Experimental Dispersion Relations", Phys. Rev. Letters 38, 1087 (1977).

30. N.E. Christensen and R.F. Willis, "Transmission-Induced Structure in Electron Emission Spectra", Solid State Commun. 25, 721 (1978).

31. N.E. Christensen, "Electron-Phonon Interaction". Report Phys. Lab. I, Techn. Univ. of Denmark, (1978).

32. N.E. Christensen, "Spin-Orbit Projected d Densities-of-States of Pd, Ag, Pt and Au", J. Phys. F: Metal Phys. 8, L51 (1978).

33. R. F. Willis and N.E. Christensen, "Secondary-Electron-Emission Spectroscopy of Tungsten: Angular Dependence and Phenomenology", Phys. Rev. B 18, 5140 (1978).

34. N. de S. Christensen and N.E. Christensen, "Resonant Tunneling via Localized Impurity States in Metal-Insulator-Metal Junctions", Solid State Commun. 27, 1259 (1978).

35. N.E. Christensen and R.F. Willis, "Secondary Electron Emission from Tungsten: Observation of the Electronic Structure of the Semi-Infinite Crystal", J. Phys. C: Solid State Phys. 12, 167 (1979).

36. P. Z\"{u}rcher, F. Meier and N.E. Christensen, "Optically Polarized Conduction-Band Electrons in Tungsten Observed by Spin-Polarized Photoemission", Phys. Rev. Letters 43, 54 (1979).

37. N.E. Christensen, "Photoemission from Au(111) and (110). Temperature Effects", Phys. Rev. B 20, 3205 (1979).

38. N.E. Christensen and N. de S. Christensen, "Resonant Tunneling Through a One-Dimensional Double Barrier", Rep. 194 Phys. Lab. I, Techn. Univ. of Denmark (1979).

39. N.E. Christensen, "The Application of Synchrotron Radiation in Photoemission Experiments", Rep. 191 Phys. Lab. I, Techn. Univ. of Denmark (1979).

40. N.E. Christensen and N. de S. Christensen, "Dynamic-Conductance Anomalies in Pd Films. Observation of a Phase Transition", J. Phys. C: Solid State Phys. 13, 6553 (1980).

41. N.E. Christensen, "Energy Coincidence Method in Angle-Resolved Photoemission", Solid State Commun. 37, 57 (1981).

42. N.E. Christensen, "Angle-Resolved Photoemission. Appearance Angles", Solid State Commun. 38, 309 (1981).

43. N.E. Christensen, "Angle-Resolved Photoemission from Au(112)", Phys. Rev. B 24, 2263 (1981).

44. N.E. Christensen, "Photo-Electron Spectroscopy of Metals", Proc. of "11th International Symp. on Electronic Structure of Metals and Alloys", Gaussig, Dresden 6-11 April, 1981, Ed. P. Ziesche, p. 77 (TU Dresden 1981).

45. N.E. Christensen and J.W. Wilkins, "Metallization Xenon under Pressure", Nordita Rep. 81/36 (1981).

46. N.E. Christensen and J.W. Wilkins, "Electronic Pressures in Heavy Metals", Physica Scripta 25, 691 (1982).

47. A. Blacha, M. Cardona, N.E. Christensen, S. Ves and H. Overhof, "Spin-Orbit Splitting of the Copper Halides and its Volume Dependence", Solid State Commun. 43, 183 (1982).

48. N.E. Christensen, "Volume Dependence of the Spin-Orbit Splitting in the Au-d Band", Solid State Commun. 44, 51 (1982).

49. A. Blacha, M. Cardona, N.E. Christensen, S. Ves and H. Overhof, "Volume Dependence of the Spin-Orbit Splitting in the Copper Halides", Physica 117B +118B}, 63 (1983).

50. N.E. Christensen, "Relativistic Band Structure Calculations", Int. Journal Quant. Chem. 25, 233 (1984).

51. N.E. Christensen and J. Kollar, "Electronic Structure of CsAu", Solid State Commun. 46, 727 (1983).

52. N.E. Christensen, "Force Theorem and Elastic Constants of Solids", Solid State Commun. 49, 701 (1983).

53. C. Koenig, N.E. Christensen and J. Kollar, "Electronic Properties of Alkali-Gold Compounds", Phys. Rev. B 29, 6481 (1984).

54. N.E. Christensen, "Band Structure Calculations - An Introduction", Phys. Lab. I Report 258, Techn. Univ. of Denmark (1983).

55. N.E. Christensen, "Non-Spherical Charge Distributions and Electrostatic Interactions in Crystals", Phys. Rev. B 29, 5547 (1984).

56. N.E. Christensen, "First-Principles Calculations of Elastic Constants of Transition Metals", psi_k-Newsletter 8, 2( 1984).

57. S. Ves, A. Blacha, M. Cardona, N.E. Christensen and H. Overhof, "Spin-Orbit Splitting in the Copper-Halides under Pressure", Proc. of Solid State Physics Conf., p. 174. Thessaloniki, Greece, May 24-25, (1982).

58. N.E. Christensen, "Deformation Potentials and Internal-Strain Parameter of Silicon", Solid State Commun. 50, 177 (1984).

59. G.B. Bachelet and N.E. Christensen, "Relativistic and "Relativistic and Core-Relaxation Effects on the Conduction Bands of Gallium Arsenide and Germanium", Phys. Rev. B 31, 879 (1985).

60. N.E. Christensen, "First-Principles Calculations of Deformation Potentials in Copper-Halides", phys. stat. sol. (b) 123, 281 (1984).

61. N.E. Christensen and M. Cardona, "Splitting of the Conduction Bands of GaAs for k along [110]", Solid State Commun. 51, 491 (1984).

62. G.B. Bachelet and N.E. Christensen, "Relativistic Effects in First-Principles Energy Bands of GaAs", Bull. Am. Phys. Soc. 29, 290 (1984).

63. N.E. Christensen, "Deformation Potentials of the Valence-Band Edge in CuBr", phys. stat. sol. (b) 125, K59 (1984).

64. N.E. Christensen and G.B. Bachelet, "1s Core Shifts and the Band Gap of Tetrahedral Semiconductors", Proceedings of 17-th ICPS, San Francisco, August 6-10, 1984, Springer, p. 1009 (Eds. J.D. Chadi and W.A. Harrison). (1984).

65. N.E. Christensen, "Electronic Structure of GaAs under Strain", Phys. Rev. B 30, 5753 (1984).

66. N.E. Christensen, "Structural Phase Stability of B2 and B32 Intermetallic Compounds", Phys. Rev. B 32, 207 (1985).

67. M. Hanfland, K. Syassen and N.E. Christensen, "Volume Dependence of Optical Transitions in GaAs: Photomodulated Reflectivity", J. Physique Colloque, Suppl. 11 to Vol. 45, C8-57 (1984).

68. O.E. Taurian, M. Springborg and N.E. Christensen, "Self-Consistent Electronic Structures of MgO and SrO", Solid State Commun. 55, 351 (1985).

69. N.E. Christensen and O.K. Andersen, "Frozen-Potential Approach for Calculation of Structural Energy Differences", (unpublished report 1985, Max-Planck Inst. Stuttgart.)

70. S.F. Alvarado, H. Riechert and N.E. Christensen, "Spontaneous Spin Polarization of Photoelectrons from GaAs", Phys. Rev. Letters 55, 2716 (1985).

71. N.E. Christensen and S. Satpathy, "Cubic to Tetragonal Pressure-Induced Transition in CsI", Phys. Rev. Letters 55, 600 (1985).

72. N.E. Christensen, "Electronic Structure and Bonding in Ternary Zintl Phases: AlSiLi", Phys. Rev. B 32, 6490 (1985).

73. N.E. Christensen, E. Molinari and G.B. Bachelet, "Long Range Order in Al$_{0.5}$Ga$_{0.5}$As", Solid State Commun. 56, 125 (1985)

74. S. Satpathy, N.E. Christensen and O. Jepsen, "Metallization of CsI under Pressure; Theoretical Results", Phys. Rev. B 32, 6793 (1985).

75. N.E. Christensen and V. Heine, "Analysis of the Electronic Pressure in Transition and Noble Metals", Phys. Rev. B 32, 6145 (1985).

76. R.C. Albers, A.M. Boring and N.E. Christensen, "The Electronic Structure of UPt_3, Phys. Rev. B 33, 8116 (1986).

77. A. Blacha, N.E. Christensen and M. Cardona, "Electronic Structure of the High-Pressure Modifications of CuCl, CuBr and CuI", Phys. Rev. B 33, 2413 (1986).

78. N.E. Christensen and M. Cardona, "Theoretical Investigation of the Pressure Dependence of Energy Gaps in Semiconductors", (unpublished report 1986).

79. N.E. Christensen, O. Jepsen and S. Satpathy, Metallization of CsI under Pressure, Results of First-Principles Relativistic LMTO Calculations", Bull. Am. Phys. Soc. 30, 512 (1985).

80. R.C. Albers, A.M. Boring and N.E. Christensen, "Electronic Band Structure of the Heavy Fermion Material UPt_3", Bull. Am. Phys. Soc. 30, 523 (1985).

81. S. Ves, K. Stroessner, N.E. Christensen, C.K. Kim and M. Cardona, "Pressure Dependence of the Lowest Direct Absorption Edge of ZnSe", Solid State Commun. 56, 479 (1985).

82. N.E. Christensen and O.B. Christensen, "Electronic Structures of ZnTe and CdTe under Pressure", Phys. Rev. B 33, 4739 (1986).

83. R.C. Albers, A.M. Boring, P. Weinberger and N.E. Christensen, "Soft X-ray Emission Intensities in UIr_3, UPt_3 and UAu_3", Phys. Rev. B 32, 7571 (1985). (RC).

84. N.E. Christensen, "Calculated Equation of State for InAs", Phys. Rev. B 33, 5096 (1986).

85. M. Cardona and N.E. Christensen, "Deformation Potentials of the Direct Gap in Diamond", Solid State Commun. 58, 421 (1986).

86. N.E. Christensen, S. Satpathy and Z. Pawlowska, "First-Principles Theory of Tetrahedral Bonding and Crystal Structure of Lead", Phys. Rev. B 34, 5977 (1986) (RC).

87. M. Cardona, N.E. Christensen and G. Fasol, "The terms Linear in k in the Band Structure of Zinc-Blende Type Semiconductors", Phys. Rev. Letters 56, 2831 (1986).

88. Z. Pawlowska, N.E. Christensen, S. Satpathy and O. Jepsen, "Pauling's Bond-Orbitals and the Nature of Bonding in Tetrahedrally-Bonded Semiconductors", Bull. Am. Phys. Soc. 31, No. 3, 402 (1986).

89. K. Syassen, N.E. Christensen, H. Winzen, K. Fischer and J. Evers, "Optical Response and Band Structure Calculations of Alkaline Earth Tellurides under Pressure", Phys. Rev. B 35, 4052 (1987).

90. Z. Pawlowska, N.E. Christensen, S. Satpathy and O. Jepsen, "Calculated Electron-Densities and sp^3-Bonding in Binary and Ternary Zintl Phases", Phys. Rev. B 34, 7080 (1986).

91. N. E. Christensen, "First-Principles Calculations of Structural Stability and Pressure-Induced Phase Transitions in Solids", Annual Report of the Max-Planck-Institut f\"{u}r Festkoerperforschung, 1985, p. I-16.

92. M. Cardona, N.E. Christensen, M. Drobowolska, J.K. Furdyna and S. Rodriguez, "Spin Splitting of the Conduction Band of InSb along [110]", Solid State Commun. 60, 17 (1986).

93. M. Cardona, N.E. Christensen and G. Fasol, "Inversion Asymmetry Effects on the Spin-Orbit Coupling of Zincblende-Type Semiconductors", Proceedings of the "18th Int. Conf. on the Physics of Semiconductors", p. 1133, 1986, Stockholm (World Scientific, Singapore 1987).

94. N. E. Christensen, S. Satpathy and Z. Pawlowska, "Bonding and Ionicity in Semiconductors", Phys. Rev. B 36, 1032 (1987).

95. P. Vargas and N.E. Christensen, "Band Structure Calculations for Ni, Ni$_4$H, Ni$_4$H$_2$, Ni$_4$H$_3$ and NiH", Phys. Rev. B 35, 1993 (1987).

96. N.E. Christensen and A.R. Mackintosh, "The Electronic Structure of Cubic Sodium-Tungsten Bronze", Phys. Rev. B 35, 8246 (1987).

97. F. Ciccaci, E. Molinari and N. E. Christensen, "GaAs/AlAs Monolayer Superlattices: A New Candidate for a Highly Polarized Electron Source", Solid State Commun. 62, 1 (1987).

98. M. Cardona and N.E. Christensen, "Acoustic Deformation Potentials and Heterostructure Band Offsets in Semiconductors", Phys. Rev. B 35, 6182 (1987) + B 36, 2906 (1987).

99. V.P. Zhukov, V.A. Gubanov, O. Jepsen, N.E. Christensen, and O.K. Andersen, "Calculated Energy Band Structures and Chemical Bonding in Titanium and Vanadium Carbides, Nitrides and Oxides". Phys. and Chem. of Solids 49, 841 (1988).

100. W.R.L. Lambrecht, N.E. Christensen, and P. Bloechl, "Electronic structures of NiSi2 and CoSi2", Phys.Rev. B36, 2493 (1987).

101. V.P. Zhukov, V.A. Gubanov, O. Jepsen, N.E. Christensen, and O.K. Andersen, "Calculated electronic structure, physical and chemical bonding in Sc- and Y-carbides", physica stat. sol. b 143, 173 (1987).

102. M. Cardona, T. Suemoto, N.E. Christensen, T. Isu, and K. Ploog, "Electronic and vibronic structure of (GaAs)(AlAs) superlattices", Phys.Rev. B 36, 5906 (1987).

103. C.S. Wang, M.R. Norman, R.C. Albers, A.M. Boring, W.E. Pickett, H. Krakauer, and N.E. Christensen, "Fermi surface of UPt3 within the local-density approximation", Phys. Rev. B 35, 7260 (1987). (RC).

104. N.E. Christensen, "Calculation of cohesive and bonding proper- ties and structural stability of semiconductors under pressure", in Proceedings of '7th General Conference of the Con- densed Matter Division of the EPS', Pisa, Italy 7-10 april 1987; eds. F.Bassani, G.Grosso, G.Pastori Parravicini, and M.P.Tosi. Physica Scripta T19, 298 (1987).

105. L. Brey, N.E. Christensen, and M. Cardona, "Deformation poten- tials at the valence-band top in semiconductors", Phys. Rev. B36, 2638 (1987).

106. M. Garriga, M. Cardona, N.E. Christensen, P. Lautenschlager, T. Isu, and K. Ploog, "Interband transitions of thin-layer superlattices", Phys.Rev. B 36, 3254 (1987).

107. V.P. Zhukov, V.A. Gubanov, O. Jepsen, N.E. Christensen, and O.K. Andersen, "Calculated Electronic Properties of Titanium Carbonitrides, TiC(x)N(1-x)", Phil.Mag. B58,139 (1988).

108. O.K. Andersen, N.E. Christensen, O. Jepsen, Z. Pawlowska, and S. Satpathy,"Theoretische Untersuchungen von Elektronenstruk- turen und Bindungen in Festkoerpern", p.512 in "Max-Planck- Gesellschaft Jahrbuch 1986", ed. Generalverwaltung der Max- Planck-Gesellschaft, Muenchen (1986). Verlag Vandenhoeck & Ruprecht, Goettingen,FRG.

109. S.-J. Oh, S. Suga, A. Kakizaki, M. Taniguchi, T. Ishii, J.-S. Kang, J.W. Allen, O. Gunnarsson, N.E. Christensen, A. Fujimori, T. Suzuki, T. Kasuya, K. Schoenhammer, M.S. Torikachvili, and M.B. Maple, "Observation of Kondo Resonance in YbAl3", Phys. Rev. B 37, 2861 (1988).

110. A.M. Boring, R.C. Albers, G.H. Schadler, P. Weinberger, and N.E. Christensen, "Electronic Structure and Magnetic Behaviour of UMn2 and UFe2", Phys.Rev B36,5507 (1987).

111. M. Alouani, L. Brey, and N.E. Christensen, "Calculated Optical Properties of Semiconductors", Phys.Rev. B37, 1167 (1988).

112. M.R. Norman, R.C. Albers, A.M. Boring, and N.E. Christensen, "Fermi surface and effective masses for the heavy-electron superconductor UPt3". Solid St. Commun. 68, 245 (1988).

113. M.R. Norman, R.C. Albers, A.M. Boring, and N.E. Christensen, "Calculated Fermi Surface Features for the A, B, and C Axis of UPt3", Bull. Am. Phys. Soc. 32, 556 (1987).

114. M. Cardona and N.E. Christensen, "Band Offsets in Semiconductor Superlattices and heterojunctions", Bull. Am. Phys. Soc. 32, 680 (1987); ibid: 679 (1987).

115. A.M. Boring, R.C. Albers, G.H. Schadler, and N.E. Christensen, "Electronic Structure and Magnetic Behavior of UMn2 and UFe2", Bull. Am. Phys. Soc. 32, 846 (1987).

116. N.E. Christensen and F. Herman, "Electronic and Magnetic Struc- ture of Crystalline Terbium Iron", Bull. Am. Phys. Soc. 32, 846 (1987).

117. M. Cardona and N.E. Christensen, "Comment on 'Spectroscopy of excited states in In_{0.53}Ga_{0.47}As-InP single quantum wells grown by chemical-beam epitaxy'.", Phys. Rev. B37, 1011 (1988).

118. N.E. Christensen, 'Dipole effects and band offsets at semicon- ductor interfaces', Phys. Rev.B 37, 4528 (1988).

119. M. Cardona, N.E. Christensen, and G. Fasol, "Relativistic Band Structure and Spin-Orbit Splittings of Zincblende-Type Semiconductors", Phys.Rev. B38,1806(1988).

120. K.H Weyrich, L. Brey, and N.E. Christensen, "Full-Potential LMTO Calculation of Phonon Frequencies in Semiconductors", Phys.Rev.B38, 1392 (1988).

121. A. Jezierski and N.E. Christensen, "Electronic Structure of Ferromagnetic UTe.", to be published (1987).

122. J.A. Verges, M. Alouani, and N.E. Christensen, 'Calculated elec- tronic properties of tetragonal Si-Ge alloys: Comparison to amor- phous phases.' Phys.Rev. B38, 1378 (1988).

123. N.E. Christensen, 'Band Offsets at Semiconductor Interfaces', Annual Report of the Max-Planck-Institut f\"ur Festk\"orperfor- schung, 1987, p. I-14.

124. M. Cardona and N.E. Christensen, 'Band Offsets in Tetrahedral Semiconductors', Journ. Vac. Sci. and Technol. B6, 1285 (1988).

125. M. Schluter, M.S. Hybertsen, and N.E. Christensen, 'Calculation of the Many-Body Interaction Parameters in the High Tc Compound La2CuO4', Proc. of the Int. Conf. on High Tc Superconductors, Materials and Mechanisms of Superconductivity, Interlaken, Switzerland February 29- March 4, 1988; Physica C153-155, 1217 (1988).

126. S. Gopalan, M. Cardona, and N.E. Christensen, 'Hybridization of Valence States and Effective Masses of Electrons and Holes in Short Period (GaAs)m(AlAs)m Superlattices', Solid State Commun. 66, 471 (1988).

127. N.E. Christensen: 'Dipole Effects and Band Offsets at Semiconduc- tor Interfaces', Bull. Am. Phys. Soc.33, 476 (1988)

128. M. Cardona, N.E. Christensen, and G. Fasol, 'Calculated Inversion- asymmetry Induced Splittings in The Energy Bands of Semiconduc- tors', Bull. Am. Phys. Soc. 33,480(1988)

129. M.S. Hybertsen, M. Schluter, and N.E. Christensen, 'First-Princip- les Evaluation of Hubbard Parameters in the High-Tc Compound La2CuO4', Bull. Am. Phys. Soc. 33, 607 (1988).

130. M. Alouani, S. Gopalan, M. Garriga, and N.E. Christensen, 'Inter- band Transitions in Ultrathin GaAs/AlAs Superlattices', Bull. Am. Phys. Soc. 33 ,671 (1988).

131. S. Gopalan, N.E. Christensen, and M. Cardona, 'Effective Masses of holes and Electrons in Ultra-Thin GaAs/AlAs Superlattices', Bull. Am. Phys. Soc. 33, 672 (1988).

132. G.P. Das, P. Bloechl, N.E. Christensen, and O.K. Andersen, Electronic Structure Calculation of NiSi2-Si Interface', Bull. Am. Phys. Soc. 33, 758 (1988).

133. N.E. Christensen, 'Possibility of heterostructure band offsets as bulk properties: Transitivity rule and orientation effects.' Phys.Rev. B38, 12687 (1988).

134. N.E. Christensen, 'Stability of GaAs/AlAs superlattices'. Solid State Commun. 68, 959 (1988).

135. N.E. Christensen and L. Brey, 'Band offsets in heterostructures with thin interlayers.' Phys. Rev. B38, 8185 (1988).

136. M. Alouani, N.E. Christensen, and K. Syassen, 'Calculated electronic properties of potassium under pressure.' Phys. Rev.B39, 8096 (1989).

137. G.P. Das, P. Bloechl, N.E. Christensen, and O.K. Andersen, 'Electronic structure of metal-semiconductor interfaces' in Proceedings of the 18-th International Symposium on Electronic Structure of Solids', Dresden april 1988, Ed. P. Ziesche (TU Dresden DDR 1988), p.147.

138. M. Alouani, S. Gopalan, M. Garriga, and N.E. Christensen, 'Inter- band Transitions in Ultrathin GaAs/AlAs Superlattices', Phys. Rev. Letters 61, 1643 (1988).

139. J.C. Parlebas, N.E. Christensen, E. Runge, and G. Zwicknagl, 'Quasiparticle Band Structure of Ce-based Heavy-Fermion Compounds', J. Physique Coll. C8, Suppl. au #12, Vol 49, 753 (1988).

140. M. Said, F. Maca, K. Kambe, M. Scheffler, and N.E. Christensen, 'The electronic structure of fcc and bcc close-packed silver surfaces', Phys. Rev. B38, 8505 (1988). (RC).

141. N.E. Christensen and L. Brey, 'Are heterostructure bandoffsets bulk properties?', Proc. Int. Conf. Phys. Semicond. 19, Warsaw 1988, W. Zawadzki ed, p 529.

142. N.E. Christensen, O. Gunnarsson, O.Jepsen, and O.K. Andersen, 'Local Spin Density Theory for Ferro- and Antiferromagnetic Materials.' (Invited contribution (NEC) to ICM'88, Paris France 1988). Journal de Physique Coll. C8, Suppl. to #12, Vol. 49, C8-17 (1988).

143. S. Gopalan, N.E. Christensen and M. Cardona, 'Character of Elec- tron and Hole States in Short-Period GaAs/AlAs Superlattices', Proc. Int. Conf. Phys. Semicond. 19, Warsaw 1988; ed. W. Zawadzki, p. 369.

144. R. M. Wentzcovitch, M. Cardona, M. L. Cohen, and N. E. Christen- sen, 'X1 and X3 States of Electrons and Phonons in Zincblende Type Semiconductors' Solid State Commun. 67, 927 (1988).

145. S. Gopalan, N.E. Christensen, and M. Cardona,'Band edge states in short-period (GaAs)m(AlAs)n superlattices', Phys. Rev. B39, 5165

146. J. Kudrnovsky, V. Drchal, M. Sob, M. Hanke, and N.E. Christensen, 'The Electronic Structure of random Semiconductor Alloys by the Tight-Binding Linear Muffin-Tin Orbital method', Proceedings of ICPS-19, Warsaw August 1988, W. Zawadzki ed., p. 937.

147. M. Hanfland, M. Alouani, K. Syassen, and N.E. Christensen, 'Optical properties of metallic silicon', Phys.Rev.B 38, 12864 (1988).

148. M. Hanfland, M. Alouani, K. Syassen, and N.E. Christensen, 'Optical properties of the high-pressure phases of Si and Ge', Semicond. Sci. Technol. 4, 250 (1989).

149. N.E. Christensen, O.K. Andersen, O. Gunnarsson, and O. Jepsen, Density Functional Calculations of Fermi Surfaces of Normal- and Heavy-Electron Metals.' Proc. of ICCF-1988, Journ. Magn.Magn.Mater. 76&77, 23 (1988).

150. O. Gunnarsson, N.E. Christensen, and O.K. Andersen, 'Density Functional Calculation of Hybridization Matrix Elements in the Anderson Model'. Proc. of ICCF-1988, Journ. Magn.Magn.Mater. 76&77, 30 (1988).

151. M. Rajagopalan, M. Alouani, and N.E. Christensen, 'Calculation of band structure and superconductivity in the simple cubic phase of phosphorus.' Journ. Low Temp. Physics 75, 1 (1989).

152. G.P. Das, P. Bloechl, O.K. Andersen, N.E. Christensen, and O. Gunnarsson, 'Electronic structure and Schottky barrier heights of NiSi2/Si (111) A- and B-type interfaces'. Phys.Rev.Letters 63, 1168 (1989).

153. G.P. Das, P. Bloechl, N.E. Christensen, and O.K. Andersen, 'Electronic structures and Schottky barrier heights of NiSi2/Si (111) A- and B-type interfaces'. Proceedings of 'NATO Advanced Research Workshop on Metallization and Metal-Semiconductor Interfaces', Munich August 22-26 1988 ed. I.P. Batra, Plenum 1989, p.215.

154. I. Gorczyca, N.E. Christensen, and M. Alouani, 'Calculated optical and structural properties of InP under pressure'. Phys. Rev. B39, 7705 (1989).

155. N.E. Christensen, S.-H. Wei, and Alex Zunger, 'First Principles Calculation of the Formation Energies of Ordered and Disordered Phases of AlAs-GaAs'. Phys. Rev. B40, 1642 (1989).

156. Mark S. Hybertsen, Michael Schluter, and Niels E. Christensen, 'Calculation of Coulomb Interaction Parameters for La2CuO4 Using a Constrained-Density-Functional Approach'. Phys. Rev.B39, 9028 (1989).

157. J. Kudrnovsky, V. Drchal, M. Sob, N.E. Christensen, and O.K. Andersen,'Electronic structure of random semiconductor alloys by tight-binding linear muffin-tin orbital method'. PRB40, 10029 (1989). (RC).

158. V. Hinkel, H. Haak, C. Mariani, L. Sorba, K. Horn, and N.E. Chris- tensen, 'Investigtion of the bulk band structure of IV-VI compound semiconductors: PbSe and PbTe.' Phys. Rev. B40, 5549 (1989).

159. P. Bloechl, G.P. Das, O.K. Andersen, and N.E. Christensen, 'Interface states and Schottky barrier heights in epitaxical NiSi2/Si (111) junctions.' Bull. Am. Phys. Soc. 34,1027 (1989)

160. Su-Huai Wei, Alex Zunger, and N.E. Christensen, 'First princip- les calculations of the excess energies of lattice matched super- structures'. Bull. Am. Phys. Soc. 34,732 (1989)

161. N.E. Christensen and I. Gorczyca, 'Electronic structures of strained-layer semiconductor superlattices'. Bull. Am. Phys. Soc. 34,1003 (1989)

162. P. Bloechl, G.P. Das, O.K. Andersen, N.E. Christensen, and O. Gunnarsson, 'Electronic Structure and Schottky Barrier Heights of (111)NiSi2/Si A- and B-Type Interfaces', Phys. Rev. B (1989). (Check ref.)

163. I. Gorczyca and N.E. Christensen, 'Electronic Structure of Strained-Layer ZnS/ZnSe Superlattices', Solid State Commun. 72, 785 (1989).

164. I. Schober, N.E. Christensen, and P. Ziesche, 'Ab-Initio Calculations of the Internal Conversion Coefficient for Valence Electrons of hcp-99Tc and bcc-235U.' Solid St. Commun. 77, 173 (1991).

165. A. Stupperich, H.J. Deiseroth, R. Pankaluoto, and N.E. Christensen, 'Structural Relations and Electronic properties of NaHg', Z. Anorg. Allg. Chem. {\bf 597}, 41 (1991).

166. S. Ves, U. Schwarz, N.E. Christensen, K. Syassen, and M. Cardona, "Equation of state, phase transition, and band gaps of ZnS under pressure", in Proceedings of the "IVth International Conference on High Pressure in Semiconductor Physics", Thessaloniki 1990 , Eds. D.S. Kyriakos and O.E. Valassiades, World Scientific, Singapoore, p. 192.

167. M. Cardona and N.E. Christensen, 'Comment on: 'Ab initio pseudopotential calculations of optical-phonon deformation potentials in zinc-blende semiconductors.'.' Phys.Rev. B41, 5407 (1990).

168. J.W. Allen, J.-S. Kang. L.-Z. Liu, O. Gunnarsson, N.E. Christensen , O.K. Andersen, M.B. Maple, M.S. Torikachvili, D.D. Koelling, W.P. Ellis, B.B. Pate, Z.-X. Shen, J.J. Yeh, and I. Lindau, 'Electron Spectroscopy of Heavy-Fermion Materials', in Proceedings of the 9th International Conference on Vacuum UV Radiation Physics, Hawaii July 1989; Physica Scripta T31,232(1990)

169. E. Runge, N.E. Christensen, and G. Zwicknagl, 'Calculation of Fermi Surfaces in Systems with Strongly Correlated Electrons', in Proceedings of the 19-th International Symposium on Electronic Structure of Solids', Dresden April 1989, Ed. P. Ziesche (TU Dresden DDR 1989), p. 245.

170. Y.M. Gu, L. Fritsche, and N.E. Christensen, 'Chemical trends in the formation and binding energy of native defects in III-V semiconductors'; phys. stat. sol. (b)159, 617 (1990).

171. N.E. Christensen, I. Gorczyca, O.B. Christensen, U. Schmid, and M. Cardona, 'Band Structure and Heterojunctions of II-VI Materials', Journ. of Crystal Growth 101, 318 (1990).

172. G. Zwicknagl, E. Runge, and N.E. Christensen, ' Low-energy excitations in heavy-fermion systems', in Proceedings of the 'International Conference on the Physics of Highly Correlated Electron Systems', Santa Fe NM, Sept. 11-15 1989. Physica B163, 97 (1990).

173. J.-S. Kang, J.W. Allen, O. Gunnarsson, N.E. Christensen, O.K. Andersen, Y. Lassailly, M.B. Mable, and M.S. Torikachvili, 'Origin of heavy-fermion behavior in CeCu2Si2', Phys.Rev. B41, 6610 (1990).

174. U. Schmid, N.E. Christensen, and M. Cardona, 'Relativistic band structure of Si, Ge, and GeSi: Inversion asymmetry effects'. Phys. Rev. B41, 5919 (1990).

175. G.P. Das, P. Bloechl, O.K. Andersen, N.E. Christensen, and O. Gunnarsson, Reply to Comment by R. Matthai on: 'Electronic structure and Schottky barrier heights of NiSi2/Si (111) A- and B-type interfaces'. Phys.Rev.Lett., to appear (1990). (1990: Will not appear;- the Comment by Matthai was rejected by the final refereeing; preprint available).

176. N.E. Christensen, E. Runge, and G. Zwicknagl, 'Quasiparticle Band Structure Calculations for Heavy Fermion Materials.' Annual Report, Max-Planck Institut (1990); p. I-85.

177. N. Motta and N.E. Christensen, 'Calculated phase diagram of the Fe(1-x)Co(x)Si(2) alloy in the flourite form'. Phys. Rev. B43, 4902 (1991).

178. S.C. Wu, H. Li, D. Tian, J. Quinn, Y.S. Li, J. Sokolov, F. Jona, and N.E. Christensen, 'Experimental band structure of a rare-earth metal: Tb(0001)'. Phys.Rev.B41, 11911 (1990).

179. A.Santoni, G. Paolucci, K.C. Prince, and N.E. Christensen, 'Band Structure of Lead Sulphide', J. Phys.: Condens. Matter 4, 6759 (1992).

180. N.E. Christensen and I. Gorczyca, 'Electronic structure of ZnS/ZnSe superlattices'. Phys. Rev. B44, 1707 (1991).

181. N.E. Christensen, 'Electronic structure of 'beta'-FeSi2'. Phys. Rev B 42, 7148 (1990).

182. G.P. Das, P. Bloechl, O.K. Andersen, N.E. Christensen, and O. Gunnarsson, Reply to Comment by R. Godby, L.J. Sham, and M. Schluter on: 'Electronic structure and Schottky barrier heights of NiSi2/Si (111) A- and B-type interfaces'. Phys.Rev.Lett. 65, 2084 (1990).

183. U. Schmid, N.E. Christensen, and M. Cardona, 'Relativistic band structure of Si, Ge, and GeSi: Inversion Asymmetry effects', Bull. Am. Phys. Soc. 35, 366 (1990).

184. R.C. Albers, A.M. Boring, L.E. Cox, O. Eriksson, and N.E. Christensen, 'The electronic structure of the alpha, beta, and bcc phases of Np', Bull. Am. Phys. Soc. 35, 446 (1990).

185. O. Eriksson, R.C. Albers, A.M. Boring, N.E. Christensen, U. Hillebrecht, and D.D. Sarma, 'Calculated and measured XPS and BIS spectra for the UPtx(x=1,2,3,5), UIrPt4, and UAuPt4 Systems.'

186. H. Ebert, N.E. Christensen, F. Herman, and M. Van Schilfgaarde, 'Electronic, Magnetic, and optical properties of Terbium Iron', Bull. Am. Phys. Soc. 35, 468 (1990).

187. O. Gunnarsson, O.K. Andersen, P. Bloechl, G.P. Das, and N.E. Christensen, 'Density functional theory for Schottky barriers', Bull. Am. Phys. Soc. 35, 666 (1990).

188. N.E. Christensen and J. Kudrnovsky, 'Calculated equations of state and pressure dependent magnetic properties of Fe3Si, Fe3Al, Fe2MnSi, and Fe2MnAl', Bull. Am. Phys. Soc. 35, 708 (1990).

189. S. Zollner, U. Schmid, C. Grein, N.E. Christensen, M. Cardona, and L. Ley, 'Empirical pseudopotential and LMTO calculations of spin splittings in AlAs, AlSb, and strained GaAs', Bull. Am. Phys. Soc. 35, 829 (1990).

190. O. Gunnarsson and N.E. Christensen, 'Crystal-field and configuration dependence of hopping matrix elements for CeCu2Si2'. Phys. Rev. B42, 2363 (1990).

191. S. Ves, U. Schwarz, N.E. Christensen, K. Syassen, and M. Cardona, 'Cubic ZnS under pressure: Optical absorption edge, phase transition, and calculated equation of state'. Phys. Rev. B42, 9113 (1990).

192. J. Kudrnovsky, N.E. Christensen, and O.K. Andersen, 'Electronic structures and magnetic moments of Fe(3+y)Si(1-y) and Fe(3-x)V(x)Si alloys with DO3-derived structure', Phys.Rev. B43, 5924 (1991).

193. J. Kudrnovsky, N.E. Christensen, and O.K. Andersen, ' Calculated electronic and magnetic properties of Fe(3+x)Si(1-x) and Fe(3-y)V(y)Si random alloys'. Bull. Am. Phys. Soc. 35, 729 (1990).

194. U. Schmid, N.E. Christensen, F. Lukes, M. Alouani, M. Cardona, E. Kasper, H. Kibbel, and H. Presting, 'Dielectric Response of Strained Ge/Si Superlattices: Theory and Experiment.' Bull. Am. Phys. Soc. 36, 523 (1991).

195. U. Schmid, N.E. Christensen, and M. Cardona, 'Calculated deformation potentials in Si, Ge, and GeSi'. Sol. State Commun. 75, 39 (1990).

196. U. Schmid, N.E. Christensen, and M. Cardona, 'Direct transition energies in strained 10-monolayer Ge/Si superlattices', Phys. Rev. Letters 65, 2610 (1990).

197. J.H. Werner and N.E. Christensen, 'Classification of Grain Boundary Activity in Semiconductors', 'Polycrystalline Semiconductors II', Springer Proceedings in Physics 54, 1991, (eds. J. Werner and H.P. Strunk), p. 145.

198. U. Schmid, N.E. Christensen, M. Cardona, and M. Alouani, 'Electronic Properties of Ge(n)Si(m) Superlattices', Proc. of the 20-th International Conference of the Physics of Semiconductors, Thessaloniki Greece, Aug. 6-10 1990, ed. by E.M. Anastassakis and J.D. Joannopoulos, World Scientific, p. 865 (1990).

199. N.E. Christensen, 'Calculated Electronic Properties of Superlattices and heterostructures', Proceedings of the 14-th Nordic Semiconductor Meeting, June 17-20 1990, Aarhus, ed. by. O. Hansen, p. 68 (1990).

200. U. Schmid, F. Lukes, N.E. Christensen, M. Alouani, M. Cardona, E. Kasper, H. Kibbel, and H. Presting, 'Interband Transitions in Strain-Symmetrized Ge(4)Si(6) Superlattices', Phys. Rev. Letters 65, 1933 (1990).

201. J. Kudrnovsky and N.E. Christensen, 'Electronic structure of transition-metal disilicides CoSi2, NiSi2 and their alloys Co(x)Ni(1-x)Si2.' Solid State Commun. 78, 153 (1991).

202. I. Gorczyca and N.E. Christensen, 'Valence-band Offsets and Interface States in ZnS/ZnSe Strained Superlattices'; Proc. of the 20-th International Conference of the Physics of Semiconductors, Thessaloniki, Greece, Aug. 6-10 1990, ed. by E.M. Anastassakis and J.D. Joannopoulos, World Scientific, p. 1005 (1990).

203. I. Gorczyca and N.E. Christensen, 'Deformation Potentials of ZnS and ZnSe Determined from ZnS/ZnSe Strained Superlattices'; Proc. of the IV International High Pressure in Semc. Phys. HPSP Conference, Chalkidiki Greece August 11-13 1990, eds D.S. Kyriakos and O.E. Valassiades, p. 132.

204. J. Kudrnovsky, N.E. Christensen,and J. Masek, 'Electronic structure of fluorite-type compounds and mixed crystals', Phys. Rev. B43, 12597 (1991).

205. R.C. Albers, A.M. Boring, L.E. Cox, O.E. Eriksson, and N.E. Christensen, 'Electronic structure and x-ray photoelectron spectroscopy of the alpha-, beta- and gamma phases of Np.' Phys.Rev. B 54, 14405 (1996).

206. J. Kudrnovsky and N.E. Christensen, 'Electronic states in mixed pseudobinary (Pb,Sr)S crystals'. Phys. Rev.B43, 9758 (1991).

207. S. Zollner, U. Schmid, N.E. Christensen, C.H. Grein, M. Cardona, and L. Ley, 'LMTO and EPM calculations valence bands in strained GaAs and InAs'. Proc. of the 20-th International Conference of the Physics of Semiconductors, Thessaloniki, Greece, Aug. 6-10 1990, ed. by E.M. Anastassakis and J.D. Joannopoulos, World Scientific, p. 1735 (1990).

208. S. Zollner, U. Schmid, N.E. Christensen, and M. Cardona, 'Conduction band minima of InP: Ordering and absolute energies'. Appl. Phys. Letters 57, 2339(1990).

209. S.-J. Oh, J.-S. Kang, J.W. Allen, S. Suga, A. Kakizaki, M. Taniguchi, T. Ishii, O. Gunnarsson, N.E. Christensen, A. Fujimori, T. Suzuki, T. Kasuya, T. Miyahara, H. Kato, K. Schoenhammer, M.S. Torikachvili, and M.B. Maple, 'Electron Spectroscopic Studies of YbAl3'. Subm. to Phys.Rev.B (1990). (check ref.)

210. U. Schmid, F. Lukes, N.E. Christensen, M. Alouani, M. Cardona, E. Kasper, H. Kibbel, and H. Presting, 'Dielectric Response of Strained Ge/Si Superlattices', Mater. Sci. and Eng. B9, 233 (1991).

211. U. Schmid, N.E. Christensen, M. Alouani, and M. Cardona, 'Electronic and optical properties of strained Ge/Si superlattices'; Phys.Rev.B43, 14597 (1991).

212. L.Z. Liu, J.W. Allen, O. Gunnarsson, N.E. Christensen, and O.K. Andersen, 'The alpha-gamma transition in Ce: I. A detailed analysis of electron spectroscopy'.Phys.Rev. B45, 8934 (1992).

213. I. Gorczyca, N.E. Christensen, P. Perlin, I. Grzegory, J. Jun, and M. Bockowski, 'High pressure phase transition in aluminium nitride'. Solid St. Commun. 79, 1033 (1991).

214. S.C. Wu, H. Li, Y.S. Li, D. Tian, J. Quinn, F. Jona, D. Fort, and N.E. Christensen, 'Re-examination of the electron band structure of Tb along Gamma-Delta-A'. Phys. Rev. B45, 8867 (1992).

215. I. Gorczyca and N.E. Christensen, 'Band Structure and High- Pressure Phase Transition in GaN', Solid State Commun. 80, 335 (1991).

216. P. Perlin, I. Gorczyca, T. Suski, H. Teisseyre, I. Grzegory, and N.E. Christensen, ' Band Structure and Refractive Index of Gallium Nitride Under Pressure', Acta Phys. Polon. A 80, 421 (1991).

217. P. Perlin, I. Gorczyca, N.E. Christensen, T. Suski, H. Teisseyre, and I. Grzegory, 'Pressure Studies of Gallium Nitride: Crystal Growth and Fundamental Electronic Properties'. Phys. Rev. B45, 13307 (1992).

218. U. Schmid, N.E. Christensen, M. Cardona, F. Lukes, and K. Ploog, 'Optical anisotropy in GaAs/AlAs (110) superlattices'. Phys. Rev. B45, 3546 (1992).

219. A. Pisanty, C. Amador, Y. Ruiz, M.A. Martinez-Carrillo, M.M. de la Vega, and N.E. Christensen,' Electronic structure and magnetic pro perties of ordered and disordered nickel-platinum alloys.' Subm. to Phys. Rev. B (1992). (Check Ref.)

220. H.G. Salunke, G.P. Das, and N.E. Christensen, 'First principles study of the electronic structure of tin under pressure'. Proceedings of XIII AIRAPT Conference, Bangalore, October 1991 (Oxford & IBH Publishing Co., New Delhi).

221. J. Kudrnovsky, I. Turek, V. Drchal, P. Weinberger, N.E. Christensen, and S.K. Bose, 'Self-consistent Green's Function Method for Random Overlayers'. Phys.Rev. B46, 4222 (1992).

222. N.E. Christensen: 'First-Principles Calculations in Condensed Matter Physics: New Materials', p. 151 in Proceedings of the International Workshop ' Chemistry of New Materials of Technological Interest', Pucon- Chile, March 15-20 1992; ed. E. Roman Espinoza. (1992).

223. S.-J. Oh, S. Suga, A. Kakizaki, M. Taniguchi, T. Ishii, J.-S. Kang, J.W. Allen, O. Gunnarsson, N.E. Christensen, A. Fujimori, T. Suzuki, T. Kasuya, K. Schoenhammer, M.S. Torikachvili, and M.B. Maple, 'Reply to "Observation of Kondo Resonance in YbAl3", Phys. Rev. B46, 1866 (1992).

224. I. Gorczyca and N.E. Christensen, 'Band Structures and High-Pressure Phase Transitions in GaN, AlN, InN, and BN', Physica B185,410 (1993).

225. N.E. Christensen and M. Methfessel, 'Density-functional calculations of tin under Pressure', Phys. Rev. B48, 5797 (1993).

226. P.Perlin, I. Gorczyca, S. Porowsky, T. Suski, N.E. Christensen, and A. Polian, 'III-V Semiconducting Nitrides: Physical Properties under Pressure', Jpn. J. Appl. Phys. 32, Suppl. 32-1, 334 (1993).

227. U. Schmid and N.E. Christensen, 'Electronic and Optical Properties of strained Ge/Si Superlattices', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 302 (1992).

228. N.E. Christensen, 'Calculated Electronic Properties of NiSi2, CoSi2, and FeSi2', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 303 (1992).

229. N.E. Christensen, ' Ferromagnetism in Fe3Si and Fe3Al under Pressure', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 303 (1992).

230. N.E. Christensen and J. Kudrnovsky, 'Magnetic Properties of Disordered Transition-Metal Silicides', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 304 (1992).

231. E. Peltzer y Blanca, A. Svane, N.E. Christensen, C.O. Rodriguez, O.M. Cappannini, M.S. Moreno, and M. Methfessel, ' First Principles Determination of Static and Dynamic Properties of Sn and Sn-O Compounds', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 322 (1992).

232. N.E. Christensen, I. Gorczyca, P. Perlin, and I. Grzegory, 'Pressure Studies of GaN and AlN: Electronic Structures and Structural Phase Transitions', Proceedings of the 'Joint Nordic Spring Meeting', May 7-10 1992, Nyborg Strand, Denmark; ed. by P.-A. Lindgaard, Risoe Natl. Lab., Roskilde, p. 323 (1992).

233. N.E. Christensen, 'The body-centered tetragonal high-pressure phase of tin.', Solid State Commun. 85, 151 (1993).

234. E.L. Peltzer y Blanca, A. Svane, N.E. Christensen, M.S. Moreno, C.O. Rodriguez, O.M. Cappannini, and M. Methfessel, 'Calculated static and dynamical properties of beta-Sn and Sn-O compounds', Phys.Rev. B 48, 15712 (1993).

235. N.E. Christensen and I. Gorczyca, 'Calculated structural phase transitions of aluminum nitride under pressure', Phys. Rev. B47, 4307 (1993).

236. E.K.R. Runge, N.E. Christensen, R.C. Albers, and G. Zwicknagl, 'Electronic Structure of CeRu2Si2', Phys. Rev. B51, 10375 (1995).

237. T. Brudevoll, D.S. Citrin, M. Cardona, and N.E. Christensen, 'Electronic structure of alpha-Sn and its dependence on hydrostatic strain', Phys. Rev. B48, 8629 (1993).

238. T. Brudevoll, D.S. Citrin, N.E. Christensen, and M. Cardona, 'Calculated electronic structure of SnGe in the zincblende structure', Phys.Rev. B48, 17128 (1993).

239. G. Allan, I. Lefebvre, and N.E. Christensen, 'Electronic Structure of Erbium Silicide', Phys. Rev. B48, 8572 (1993).

240. E.L. Peltzer y Blanca, A. Svane, N.E. Christensen, C.O. Rodriguez, O.M. Cappannini, and M.S. Moreno' 'First-principles determination of static and dynamical properties of beta-Sn and Sn-O compounds', Bull. Am. Phys.Soc. 38, 270 (1993).

241. N.E. Christensen, 'Calculated structural properties of tin under pressure', Bull. Am. Phys. Soc. 38, 306 (1993). 242. N.E. Christensen and I. Gorczyca, 'Calculated structural phase transitions of AlN under pressure'. Bull. Am. Phys. Soc. 38, 306 (1993).

243. I. Gorczyca and N.E. Christensen, 'ZnS/ZnSe strained-layer superlattices under pressure', Phys. Rev. B48, 17202 (1993).

244. C.O. Rodriguez, N.E. Christensen, and E.L. Peltzer y Blanca, 'Electronic structure of mercury-based High-Tc compounds: HgBa2Ca(n-1)Cu(n)O(2n+2)(n=1,2,3)'. Physica C 216, 12 (1993).

245. I. Gorczyca and N.E. Christensen, 'ZnS/ZnSe superlattices under pressure', Acta Phys. Polon.A 84, 783 (1993).

246. C.O. Rodriguez, R. Weht, M. Weissmann, N.E. Christensen, and E.L. Peltzer y Blanca, 'Electronic structure of the mercury-based High Tc compund with four CuO2 layers: HgBa2Ca(n-1)Cu(n)O(2n+2) (n=4).', Physica C 219, 17 (1994).

247. N.E. Christensen, 'Semiconductor Heterojunctions and Superlattices: Band Offsets and Electronic Structures.', Phil. Mag. B 70, 567 (1994).

248. N.E. Christensen, J. Kudrnovsky, and C.O. Rodriguez, 'Metamagnetic behavior in Fe3Si and Fe3Al', Internal report (1993). Subm. to PRB-- minor corrections requested. Not made. Somewhat shorter version: See publ. 405/417.

249. D. Munzar and N.E. Christensen, 'Electronic structure of Sn/Ge superlattices', Phys. Rev. B 49, 11238 (1994).

250. N.E. Christensen and I. Gorczyca, 'Optical and structural properties of III-V nitrides under pressure', Phys. Rev. B50, 4397 (1994).

251. C.O. Rodriguez, R. Weht, M. Weissmann, N.E. Christensen, and E.L. Peltzer y Blanca, 'Electronic structure, phonons and electron-phonon coupling in the mercury-based High Tc compounds with 1-5 CuO2 layers', Bull. Am. Phys. 39, 184 (1994).

252. M. Willatzen, M. Cardona, and N.E. Christensen, 'LMTO and k.p calculations of effective masses and band structure of semiconducting diamond', Phys. Rev. B 50, 18054 (1994).

253. M. Willatzen, M. Cardona, and N.E. Christensen, 'Relativistic electronic structure, effective masses, and inversion-asymmetry effects of cubic silicon cardbide (3C-SiC).' Phys. Rev. B 51, 13150 (1995).

254. C.O. Rodriguez, R. Weht, M. Weissmann, and N.E. Christensen, 'Electronic structure, nesting features and van Hove singularities in the mercury-based high-Tc compounds containing 1-5 CuO2 layers'; Physica C 235, 2111 (1994).

255. M.G. Stachiotti, E. Peltzer y Blanca, R.L. Migoni, C.O. Rodriguez, and N.E. Christensen, 'Lattice dynamics of the high-Tc superconductor HgBa2CuO4', Physica C 243, 207 (1995).

256. N.E. Christensen, I. Gorczyca, E. Peltzer y Blanca, and C.O. Rodriguez, 'Optical phonon modes in GaN and AlN', Phys. Rev. B51, 11936

257. N.E. Christensen, 'Electronic, Optical, and Cohesive Properties of Semiconductors and Superlattices from First-Principles Theory', Proceedings of the International Symposium on the Physics of Semiconductors and Applications, Seoul, Korea Oct. 13-15, 1994. Journ. Korean Phys. Soc., 28, S159 (1995).

258. M. Willatzen, M. Cardona, and N.E. Christensen, 'Spin-orbit splittings and electron g-factor of II-VI zincblende materials'. Phys. Rev. B51, 17992 (1995).

259. C.O. Rodriguez, R. Weht, M. Weissmann, and N.E. Christensen, 'Electronic structure of Bi2Sr2CuO6 (Bi2201). Description of the copper-oxygen bands close to the Fermi energy', Journal of Superconductivity, 8, 639 (1995).

260. N.E. Christensen, M.G. Stachiotti, E.L. Peltzer y Blanca, R.L. Migoni, and C.O. Rodriguez, 'Theoretical determination of the lattice dynamical properties of the mercury based superconductor HgBa2CuO4', Journal of Superconductivity, 8, 609 (1995)

261. N.E. Christensen, A.L. Ruoff, and C.O. Rodriguez, 'Pressure Strengthening;- a Way to Multimegabar Static Pressures" Phys. Rev. B 52, 9121 (1995).

262. M. Willatzen, L.C. Lew Yan Voon, P.V. Santos, M. Cardona, D. Munzar, and N.E. Christensen, 'Band edge states in Sn(1)Ge(n) strained-layer superlattices' Phys. Rev. B52, 5070 (1995).

263. 'Surface effects on the electronic structure of Bi-2201', C.O. Rodriguez, R. Weht, M. Weissmann, N.E. Christensen, and M. Methfessel, Physica C 258, 360 (1996).

264. 'Are surface effects to be included in the study of the electronic structure of Bi2201', C.O. Rodriguez, R. Weht, M. Weissmann, and N.E. Christensen, Proceedings of the Stanford Conference on Spectroscopies in Novel Superconductors, published in Journ. Phys. Chem. Solids 56, 1751 (1995).

265. 'CLOPW- A mixed-basis band structure method', C.M.J. Wijers, H.G. Bekker, and N.E. Christensen, Phys. Rev. B 52, 7767 (1995).

266. C.O. Rodriguez, R. Weht, M. Weissmann, and N.E. Christensen, 'First-principles study of surface effects on the electronic structure of Bi2201', Bull. Am. Phys. Soc. 40, 121 (1995).

267. M.G. Stachiotti, E.L. Peltzer y Blanca, R.L. Migoni, C.O. Rodriguez, and N.E. Christensen, 'Theoretical determination of the lattice dynamical properties of the mercury based superconductor Hg1201', Bull. Am. Phys. Soc. 40, 72 (1995).

268. R. Weht, O.M. Cappannini, C.O. Rodriguez, and N.E. Christensen, 'Electronic, structural and lattice dynamical study of intermetallic superconductors', Bull. Am. Phys. Soc. 40, 120 (1995).

269. N.E. Christensen, I. Gorczyca, E. Peltzer y Blanca, and C.O. Rodriguez, 'Zone center phonons in AlN and GaN under pressure', Bull. Am. Phys. Soc. 40, 415 (1995).

270. M. Willatzen, M. Cardona, and N.E. Christensen, 'Linear-Muffin-Tin-Orbital Calculations of Spin Splittings and Effective Masses in Cubic SiC', Bull. Am. Phys. Soc. 40, 753 (1995).

271. L.C. Lew Yan Voon, M. Willatzen, P.V. Santos, M. Cardona, D. Munzar, and N.E. Christensen, 'Theoretical Investigation of Inversion-Asymmetry Effects on the Band Structure of Sn(1)Ge(n) Superlattices', Solid State Electronics 40, 191 (1996).

272. A. Svane, E.A. Kotomin, and N.E. Christensen, 'First-principles calculations of the vibrational properties of H centers in KCl crystals', Phys. Rev. B 53, 24 (1996).

273. M. Fanciulli, C. Rosenblad, G. Weyer, A. Svane, N.E. Christensen, and H. von K{\"a}nel, 'Conversion electron M{\"o}ssbauer spectro- scopy study of epitaxial beta-FeSi2 grown by MBE', Phys. Rev. Letters 75, 1642 (1995).

274. L.C. Lew Yan Voon, M. Willatzen, M. Cardona, and N.E. Christensen, 'Terms linear in k in the band structure of wurtzite-type semi- conductors', Phys. Rev. B 53, 10703 (1996).

275. I. Gorczyca, A. Svane, and N.E. Christensen, "Calculations of native defects and impurities in GaN including high pressure effects", Acta Physica Polonica 88, 723 (1995).

276. T. Brudevoll, E.A. Kotomin, and N.E. Christensen, 'Interstitial oxygen atom diffusion in MgO'. Phys. Rev. B 53, 7731 (1996).

277. N.E. Christensen, 'Electronic Properties of Solids under Pressure', proceedings of the 'Joint XV AIRAPT & XXXIII EHPRG INTERNATIONAL CONFERENCE', Warsaw, Poland, September 11-15, 1995. Ed. W.A. Trzeciakowski, World Scientific, p. 725 (1996).

278. I. Gorczyca, A. Svane, and N.E. Christensen, "High Pressure Study of Impurity States in Cubic GaN and AlN Crystals". Proceedings of the 'Joint XV AIRAPT & XXXIII EHPRG INTERNATIONAL CONFERENCE', Warsaw, Poland, September 11-15, 1995. Ed. W.A. Trzeciakowski, World Scientific, p. 609 (1996).

279. H.G. Bekker, C.M.J. Wijers, and N.E. Christensen, 'Confinement and the CLOPW method', Physica B 217, 193 (1996).

280. R. Weht, O.M. Cappannini, C.O. Rodriguez, and N.E. Christensen, 'First-principles calculations of compressibilities and their pressure dependence in LuNi2B2C', Physica C 260, 125 (1996).

281. E.A. Kotomin, A. Svane, T. Brudevoll, W. Schulz, and N.E. Christensen, 'First-principles simulations of interstitial atoms in ionic solids', Vol. 48 of "Proceedings of Symp. P (Materials Theory) of the Fall Meeting of the Materials Research Society (MRS), Boston, December 1995" (1996), p. 509.

282. E.A. Kotomin, A. Svane,T. Brudevoll, N.E. Christensen, and W. Schulz, 'Electronic structure and diffusion mechanism of interstitial atoms in KCl and MgO crystals', Bull. Am. Phys. Soc. 41, 129 (1996).

283. M.G. Stachiotti, C.R.A. Catlow, C.O. Rodriguez, N.E. Christensen, and A. Svane, 'Electronic structure and anomalous phonon behavior in YBa2Cu4O8 under pressure', Bull. Am. Phys. Soc. 41, 536 (1996).

284. N.E. Christensen, A. Svane, and T. Brudevoll, 'Calculated c/a ratio of Zn under pressure', Bull. Am. Phys. Soc. 41, 717 (1996).

285. A. Svane, N.E. Christensen, M. Fanciulli, G. Weyer, M. Methfessel, and C.O. Rodriguez, 'Calculations og Electric Field Gradients in beta-FeSi2 and Tin Oxides', Bull. Am. Phys. Soc. 41, 788 (1996).

286. M. Fanciulli, C. Rosenblad, G. Weyer, A. Svane, N.E. Christensen, H. von Kaenel, and C.O. Rodriguez, ' Electronic configuration of Fe in beta-FeSi2', J. Phys. C: Condens. Matter 9, 1619 (1997).

287. N.E. Christensen, I. Wenneker, A. Svane, M. Fanciulli, 'Electronic Structures of Semiconductors under Pressure', Proceedins of The Seventh International Conference on High Pressure Semiconductor Physics, HPSP-VII, July 28-31 1996 Schwaebisch-Gmuend, Germany. physica stat. sol.(b) 198, 23 (1996).

288. M. Fanciulli, A. Zankevich, I. Wenneker, A. Svane, N.E. Christensen, and G. Weyer, 'The Electric Field Gradient at The Fe Nucleus in epsilon-FeSi', Phys. Rev. B 54, 15 985 (1996).

289. P.W.M. Jacobs, E.A. Kotomin, N.E. Christensen, and T. Brudevoll, 'Theory of Diffusion and Aggregation of Radiation-Induced Defects in MgO and alpha-Al2O3 Crystals', Proc. of the International Conference on Defects in Insulating Materials, Winston-Salem, NC USA, July 15-19 1996, p. 687. Materials Science Forum 239, 391 (1997).

290. E.A. Kotomin, P.W.M. Jacobs, N.E. Christensen, T. Brudevoll, M.M. Kuklja, and A.I. Popov, 'Calculation of Diffusion Energies for Defects in MgO in MgO Crystals', Proc. of the International Conference on Diffusion in Materials, DIMAT-96, August 5-9 1996, Nordkirchen, Germany. (In print 1996).

291. M.G. Stachiotti, C.R.A. Catlow, C.O. Rodriguez, and N.E. Christensen, ' Electronic structure and phonon behaviour in YBa2Cu4O8', Physica C 269, 273 (1996).

292. I. Gorczyca, A. Svane, and N.E. Christensen, "Calculations of native defects in cubic AlN", Acta Physica Polonica A90, 793 (1996).

293. I. Gorczyca, A. Svane, and N.E. Christensen, 'Calculated defect levels in GaN and AlN and their pressure coefficients', Solid State Commun. 101, 747 (1997).

294. A. Svane, N.E. Christensen, C.O. Rodriguez, and M. Methfessel, 'Calculation of hyperfine parameters in tin compounds', Phys. Rev. B 55, 12572 (1997).

295. N.E. Christensen: 'Electronic Structures of Semiconductors under Pressure', Review in 'High Pressure in Semiconductor Physics', ed. T. Suski and W. Paul, Academic Press, (Vol. 54 of 'Semiconductors and Semimetals', ed. R.K. Willardson and E. R. Weber), p. 49 (1998).

296. N.E. Christensen and P. Perlin, 'GaN under Pressure: Phase Transitions and Phonons', p. 09 in 'Gallium Nitride (GaN)', ed. J.I. Pankove and T.D. Moustakis, Academic Press (1997). (Vol. 50 of 'Semiconductors and Semimetals', ed. R.K. Willardson and E. R. Weber).

297. R.I. Eglitis, N.E. Christensen, E.A. Kotomin, A.I. Postnikov, and G. Borstel, 'First-principles and semi-empirical calculations for F centres in KNbO3', Phys. Rev. B56, 8599 (1997).

298 C.O. Rodriguez, G. Fabricius, M.G. Stachiotti, and N.E. Christensen, 'Pressure dependence of the electric-field gradients in $YBa_2Cu_4O_8$', Physica C282-287, 1619 (1997).

299 C.O. Rodriguez, R. Weht, and N.E. Christensen, 'The Local Density Approximation (LDA) bandstructure and Fermi-surface of $YBa_2Cu_3O_7$ (Y123)', Physica C282-287, 1621 (1997).

300. D.L. Novikov, A.J. Freeman, N.E. Christensen, A. Svane, and C.O. Rodriguez, 'LDA simulation of pressure induced anomalies in c/a and EFG for Zn and Cd', Phys. Rev. B 56, 7206 (1997).

301. N.E. Christensen, 'Pressure as a Probe of the Solid State', (PS file text)

302. C.O. Rodriguez, G. Fabricius, M. Stachiotti, A. Svane, and N.E. Christensen, "Pressure behavior of the electric-field gradients in YBa$_2$Cu$_4$O$_8$", Bull. Am. Phys. Soc., 42 428 (1997).

303. R.A. Casali and N.E. Christensen, "Shear deformation potentials of k=0 states and elastic properties of ZnS and ZnSe under pressure." Bull. Am. Phys. Soc., 42, 578 (1997).

304. D.L. Novikov, A.J. Freeman, N.E. Christensen, A. Svane, and C.O. Rodriguez, "Pressure induced anomalies in c/a and EFG for Zn and Cd : LDA simulations", Bull. Am. Phys. Soc., 42, 686 (1997).

305. D. Munzar, E. Dobrocka, I. Vavra, R. Kudela, M. Harvanka, and N.E. Christensen, "Antiphasing mechanism of ordered GaInP layers grown on GaAs (001)", Phys. Rev. B 57, 4642 (1998).

306. I. Gorczyca, A. Svane, and N.E. Christensen, "Theoretical study of point defects in GaN and AlN; lattice relaxations and pressure effects", proceedings of EGW2 Conference in Valbonne, France, June 11-13 1997; MRS Internet J. Nitride Semicond. Res. 2, 18 (1997). (paper on MRS web)

307. E.A. Kotomin, N.E. Christensen, R.I. Eglitis, and G. Borstel, "A Comparative study of the atomic and electronic structure of F-centers in ferroelectric KNbO$_3$: ab initio and semi-empirical calculations", Computational Materials Science 10, 339 (1998).

308. C.O. Rodriguez, G. Fabricius, M.G. Stachiotti, and N.E. Christensen, 'Theoretical study of pressure and temperature variations of the electric-field gradients in YBa$_2$Cu$_4$O$_8$.' Phys. Rev. B 56, 14833 (1997).

309. B.A. Weinstein, P. Perlin, N.E. Christensen, I. Gorczyca, V. Iota, T. Suski, P. Wisniewski, M. Osinski, and P.G. Eliseev, "Cubic InN inclusions: Proposed explanation for the small pressure-shift anomaly of the luminescence in InGaN-based quantum wells", Solid State Commun. 106, 567 (1998).

310. M. Fanciulli, G. Weyer, A. Svane, N.E. Christensen, H. von Kaenel, N. Onda, L. Miglio, and F. Tavazza, 'Microscopic environment of Fe in epitaxially stabilized c-FeSi', Phys. Rev. B 59, 3675 (1999).

311. U. Schwarz, K. Syassen, K. Takemura, and N.E. Christensen, 'Structural and Optical Properties of XeF2 at Pressures up to 98 GPa', High Pressure Science and Technology 6, 136 (1997).

312. R.A. Casali and N.E. Christensen, 'Elastic constants and deformation potentials of ZnS and ZnSe under pressure', Solid State Commun. 108, 793 (1998).

313. I. Gorczyca, A. Svane, N.E. Christensen, "Calculations of point defects in AlN and GaN; lattice relaxation effects" Acta Phys. Polon. A 92, 785 (1997).

314. O.M. Cappannini, C.O. Rodriguez, R. Weht, and N.E. Christensen, "Pressure dependence of compressibilities of YNi2B2C and YPd2B2C", Physica C 306, 101 (1998).

315. C.O. Rodriguez, D.L. Novikov, M.G. Stachiotti, and N.E. Christensen, " Structural and vibronic properties of perovskites studied by using the Perdew-Burke-Ernzerhof GGA", Proceedings of the "Fifth Williamsburg Workshop on First-Principles Calculations for Ferroelectrics." Febr. 1-4 1998, Col. Williamsburg, VA, USA. 1998, p. 265, ed. R.E. Cohen. (AIP Conference Proceedings 436).

316. A.L. Ruoff, C.O. Rodriguez, and N.E. Christensen, "The elastic moduli of tungsten to 15 Mbar, phase transition at 6,5 Mbar, and rheology to 6 Mbar", Phys. Rev. B 58, 2998 (1988).

317. D.L. Novikov, M.I. Katsnelson, A.V. Trefilov, A.J. Freeman, N.E. Christensen, A. Svane, C.O. Rodriguez, "Anisotropy of thermal expansion and electronic topological transitions in Zn and Cd under pressure", Phys. Rev. B 59, 4557 (1999).

318. C.O. Rodriguez, D.L. Novikov, N.E. Christensen, and M.G. Stachiotti, "Study of structure related properties and zone center phonons in perovskites using the Perdew-Burke-Enzerhof GGA correction", Bull. Am. Phys. Soc. 43, 154 (1998).

319. C. Wijers, C. Bekker, and N.E. Christensen, "CLOPW: A full-potential mixed-basis set electronic structure method". Bull. Am. Phys. Soc. 43, 740 (1998).

320. S.Tinte, M.G. Stachiotti, C.O. Rodriguez, D.L. Novikov, and N.E. Christensen, "Applications of the generalized gradient approximation to ferroelectric perovskites", Phys. Rev. B 58, 11959 (1998).

321. I. Gorczyca, A. Svane, and N.E. Christensen, "Native defects and carbon impurities in cubic BN" Proceedings of EGW-3 1998.

322. N.E. Christensen. D.L. Novikov, R.E. Alonso, and C.O. Rodriguez, "Solids under Pressure. Ab Initio Theory", physica stat. solidi (b) 211, 5 (1999).

323. D. Roennow, N.E. Christensen, and M. Cardona, "Deformation potentials of the E_1 transition in Ge, GaAs, InP, ZnSe, and ZnTe from ab initio calculations", Phys. Rev. B 59, 5575 (1999).

324. K. Lawniczak-Jablonska, T. Suski, Z. Liliental-Weber, I. Gorczyca, N.E. Christensen, E.M. Gullikson, J.H. Underwood, and T.J. Drummond, "X-Ray Absorption Study of the Electronic States in GaN Polycrystals and Epitaxial Layers"; Molecular Physics Repts. 21, 93 (1998).

325. P. Perlin, T. Suski, J. Ager III, G. Conti, A. Polian, N.E. Christensen, I. Gorczyca, E.R. Weber, and E. Haller, "Transverse effective charge and its pressure dependence in gallium nitride single crystals", Phys. Rev. B 60, 1480 (1999).

326. R.I. Eglitis, E.A. Kotomin, A.V. Postnikov, N.E. Christensen, and G. Borstel, " First-principles and semiempirical Hartree- Fock calculations for F centers in KNbO3 and Li impurities in KTaO3", Proceedings of the "Fifth Williamsburg Workshop on First-Principles Calculations for Ferroelectrics." Febr. 1-4 1998, Col. Williamsburg, VA, USA. 1998, p. 207, ed. R.E. Cohen. (AIP Conference Proceedings 436).

327. R.I. Eglitis, E.A. Kotomin, A.V. Postnikov, N.E. Christensen, M.A. Korotin, and G. Borstel, "Computer Simulations of Defects in Perovskite KNbO3 Crystals.", "Ferroelectrics" Vol. 229, 69 (1999).

328. N.E. Christensen, D.L. Novikov, and M. Methfessel, "The "Intermediate" High-Pressure Phase of Si", Solid State Commun. 110, 615 (1999).

329. K. Lawniczak-Jablonska, T.Suski, Z. Liliental-Weber, I. Gorczyca, N.E. Christensen, E. M. Gullikson, J. H. Underwood, T. J. Drummond, D. L. Ederer and R.C.C. Perera, "Synchrotron radiation absorption and emission studies of the electronic structure in group III nitrides". ISSRNS'98 - Book of Abstracts, B22 .

330. E.A. Kotomin, R.I. Eglitis, A.V. Postnikov, G. Borstel, and N.E. Christensen, "First-principles and semi-empirical calculations for bound hole polarons in KNbO3." Phys. Rev. B 60, 1 (1999).

331. I. Gorczyca, A. Svane, and N.E. Christensen, "Theory of point defects in GaN, AlN and BN: Relaxation and pressure effects". Phys. Rev. B 60, 8147 (1999).

332. N.E. Christensen and D.L. Novikov, "Electronic structure of materials under pressure", Int. Journ. Quantum Chem. 77, 880 (2000).

333. P. Perlin, B.A. Weinstein, N.E. Christensen, I. Gorczyca, V. Iota, T. Suski, P. Wisniewski, M. Osinski, and P.G. Eliseev, "Cubic InN inclusions as the cause for the for the unusually weak pressure shift of the luminescence in InGaN", Mat. Res. Soc. Symp. Vol. {\bf 482}, 697 (1998).

334. N.E. Christensen and D.L. Novikov, "The 'intermediate' high- pressure phase of silicon", Bull. Am. Phys. Soc. {\bf 44}, 1570 (1999).

335. H. Olijnyk, A.P. Jephcoat, D.L. Novikov, M.I. Katsnelson, A.V. Trefilov, A.J. Freeman, N.E. Christensen, and A. Svane, "Is there an ETT induced phonon softening in hcp Zn and Cd?", Bull. Am. Phys. Soc. {\bf 44}, 668 (1999).

336. D.L. Novikov, A.J. Freeman, M.I. Katsnelson, A.V. Trefilov, N.E. Christensen, A. Svane, and C.O. Rodriguez, " Electronic topological transitions in Zn and Cd under pressure and anisotropy of thermal expansion coefficients", Bull. Am. Phys. Soc. {\bf 44}, 308 (1999).

337. N.E. Christensen, E.A. Kotomin, R.I. Eglitis, A.V. Postnikov, G. Borstel, D.L. Novikov, S. Tinte, M.G. Stachiotti, and C.O. Rodriguez, "Quantum Mechanical Modelling of Pure and Defective KNbO3 Perovskites", Proceedings of NATO Advanced Research Workshop "Defects and Surface-Induced Effects in Advanced Perovskites"

338. M.G. Stachiotti, C.O. Rodriguez, C. Ambrosch-Draxl, and N.E. Christensen, "First-Principles Investigation of SrBi2Ta2O9", Ferroelectrics 237, 49 (2000).

339. K. Lawniczak-Jablonska, T. Suski, I.~Gorczyca, N.E.~Christensen, K.E.~Attenkofer, E.M.~Gullikson, J.H.~Underwood, D.L.~Ederer, and R.C.C.~Perera, Z. Liliental Weber, "Electron states in valence and conduction bands of group III nitrides: experiment and theory", Physical Review B 61, 16623 (2000).

340. Ken-ichi Takemura, N. E. Christensen, D. L. Novikov, K. Syassen, U. Schwarz, and M. Hanfland, "On the phase stability of highly compressed cesium", Phys.Rev. B 61, 14399 (2000).

341. H. Olijnyk, A.P. Jephcoat, D.L. Novikov, and N.E. Christensen, "Pressure shift of the zone-center TO mode of Zn to 58 GPa"; Phys. Rev. B 62, 5508 (2000).

342. N.E. Christensen, D.J. Boers, J. van Velsen, and D.L. Novikov, "Ab initio thermodynamics of bcc- and fcc cesium"; Journ. of Phys.: Cond. Matter 12, 3293 (2000).

343. R.E. Alonso, C.O. Rodriguez, and N.E. Christensen, "Electronic structure of the Hg-O double-layer high-Tc cuprate superconductor: Hg_2Ba_2YCu_2O_8.", Phys. Rev. B 63, 134506 (2001).

344. N.E. Christensen, D.J. Boers, J. van Velsen, and D.L. Novikov, " Negative thermal expansion coefficient and isostructural transition in fcc cesium", Phys. Rev. B 61, 3764 (2000). (RC)

345. I. Gorczyca, A. Svane, and N.E. Christensen, "Mg-O and Mg-V_N defect complexes in cubic GaN", Phys. Rev. B 61, 7494 (2000).

346. N.E. Christensen, "Elemental metals under pressure", Proceedings of the "15-th Latinamerican Symposium on Solid State Physics", Cartagena de Indes, Colombia, Nov. 1-5 (1999); phys. stat. sol. (b) 220, 325 (2000).

347. M.G. Stachiotti, C.O. Rodriguez, C. Ambrosch-Draxl, and N.E. Christensen, "Electronic structure and ferroelectricity of SrBi2Ta2O9", Phys. Rev. B 61, 14434 (2000).

348. D.L. Novikov, N.E. Christensen, K. Takemura, K.Syassen, K.Schwarz, and M. Hanfland, "Density functional simulation of the phase stability of highly compressed Cs and Ge", Bull. Am. Phys. Soc. 45, 56 (2000).

349. N.E. Christensen, D.L. Novikov, D.J. Boers, and J.L. van Velsen, "Ab initio thermodynamics of bcc- and fcc cesium"; Bull. Am. Phys. Soc. 45, 56 (2000).

350. M. Hanfland, K. Syassen, N.E. Christensen, and D.L. Novikov, "New high pressure phases of lithium"; Nature 408, 174 (2000).

351. K.Takemura, U.Schwarz, K.Syassen, M.Hanfland, N.E.Christensen,D.L.Novikov, and I. Loa, "High-pressure Cmca and hcp phases of germanium", Phys. Rev. B 62, 10603 (2000). (RC).

352. K. Lawniczak-Jablonska, T. Suski, I.~Gorczyca, N.E.~Christensen, J. Libera, J. Kachniarz, P. Lagarde, R. Cortes, and I. Grzegory, "Anisotropy of atomic bonds formed by p-type dopants in GaN crystals"; Applied Physics A 75, 577 (2002).

353. N.E. Christensen and D.L. Novikov, "Predicted Superconductive Properties of Lithium under Pressure", Phys. Rev. Lett. 86, 1861 (2001).

354. M. Cardona and N.E. Christensen, "Spin-Orbit Splittings in AlN, GaN, and InN", Solid State Commun. 116, 421 (2000).

355. K. Takemura, U.Schwarz, K.Syassen, M.Hanfland, N.E.Christensen,D.L.Novikov, and I. Loa, "High-pressure structures of Ge above 100 GPa", in Proceedings of the conference on "High Pressure in Semiconductor Physics 9" (HPSP9), Sapporo, Japan, September 2000. phys. stat. sol. (b) 223, 385 (2001).

356. N.E. Christensen and D.L. Novikov, "High-pressure phases of alkali metals", Psi-k Newsletter 42, 76 (2000)

357. P. Perlin, I. Gorczyca, T. Suski, P. Wisniewski, S. Lepkowski, N.E. Christensen, A. Svane, M. Hansen, S.P. DenBaars, B. Damilano, N. Grandjean, and J. Massies, "Influence of pressure on the optical properties of InGaN epilayers and quantum structures." Phys. Rev. B 64, 115319 (2001).

358. M. Hanfland, K. Syassen, N.E. Christensen, and D.L. Novikov, "Lithium at High Pressures"; ESRF Highlights 2000, 76 (2001).

359. D.L. Novikov and N.E. Christensen, "Superconductivity in Lithium under Pressure", Bull. Am. Phys. Soc. 46, 906 (2001).

360. I. Gorczyca, N.E. Christensen, and A. Svane, "Calculations of Mg-O and Mg-V$_N$ complexes in cubic GaN", Conf. Booklet of XXVIII Int. School of Phys. of Semicond. Compounds", Jaszowiec 1999, ed. Polish Acad. Sciences, Warsaw 1999.

361. K. Lawniczak-Jablonska, T. Suski, I. Gorczyca, N.E. Christensen, and K.E. Attenkofer, "Experimental and theoretrical studies of the conduction bands in group-III nitrides", Annual Report Hamburger Synchrotronstrahlungslabor, HASYLAB, 1999.

362. N.E. Christensen and D.L. Novikov, "High Pressure Phases of Alkali Metals"; Bull. Am. Phys. Soc. 46, 1199 (2001).

363. N.E. Christensen and D.L. Novikov, "High-pressure phases of the light alkali metals." Solid State Communications 119, 477 (2001).

364. M. Hanfland, K. Syassen, N.E. Christensen, and D.L. Novikov, "Lithium and sodium, simple metals ?" Extended abstracts for the AIRAPT-18 meeting, Beijing July 2001, p. 46.

365. N.E. Christensen, D.L. Novikov, M. Hanfland, and K. Syassen, "Calculated Properties of High-Pressure Phases of 'Simple Metals'", Extended abstracts for the AIRAPT-18 meeting, Beijing July 2001, p. 194.

366. A.L. Ruoff, C.O. Rodriguez, and N.E. Christensen "Rheology to 600 GPa", Extended abstracts for the AIRAPT-18 meeting, Beijing July 2001, p. 183.

367. N.E. Christensen and D.L. Novikov, "Calculated Properties of High-Pressure Phases of 'Simple Metals'", Journ. Phys.: Cond. Mat. 14, 10879 (2002).

368. M. Fanciulli, A. Zenkevich, J. Chevalier, A. Svane, N.E. Christensen, and G. Weyer, "Structural and magnetic properties of Fe(x)Si(1-x) thin films", Phys. Rev. B, Check ref.)

369. A.L. Ruoff, C.O. Rodriguez and N.E. Christensen, "Pressure Strengthening and Its Application to the Analysis of Hydrogen Sample-Radius Behavior in a Tungsten Gasket as a Function of the Initial Sample Radius to Tip Radius Ratio", Journ. Phys.: Cond. Mat. 14, 10907 (2002).

370. N.E. Christensen, "Relativistic Solid State Theory", 2002 . Chapt. 15 of "Relativistic Electronic Structure: Part 1, Fundamentals", Ed. by P. Schwerdtfeger, p. 816, Elsevier Science (2002).

371. I. Gorczyca, N.E. Christensen, and A. Svane, "Influence of hydrostatic pressure on cation vacancies in GaN, AlN, and GaAs", Phys. Rev. B 66, 075210 (2002).

372. M. Hanfland, K. Syassen, N.E. Christensen, D.L. Novikov, and I. Loa, "High pressure phases of light alkali metals", Annual Rep. Max-Planck Soc. 2001. (2002).

373. I. Gorczyca, C. Skierbiszewski, T. Suski, N.E. Christensen, and A. Svane, "Pressure and composition dependence of the electronic structure of GaAs(1-x)N(x)", Phys. Rev. B 66, 081106 (2002). (RC).

374. M. Corti, A. Gabetta, M. Fanciulli, A. Svane, and N.E. Christensen, "(69,71)Ga NMR spectra and relaxation in rurtzite GaN", Phys. Rev. B 67, 064416 (2003).

375. F. Raiola, P. Migliardi, L. Gang, C. Bonomo, G. Gy{\"u}rky, R. Bonetti, C. Broggini, N.E. Christensen, P. Corvisiero, J. Cruz, A. D{\`O}nofrio, Z. F{\"u}lop, G. Gervino, L. Gialanella, A.P. Jesus, M. Junker, K. Langanke, P. Prati, V. Roca, C. Rolfs, M. Romano, E. Somorjai, F. Strieder, A. Svane, F. Terrasi, J. Winther, "Electron screening in d(d,t)t for deuterated metals and the periodic table", Phys. Lett. B 547, 193 (2002).

376. N. Gonzalez Szwacki, P. Boguslawski, I. Gorczyca, N.E. Christensen, and A. Svane, "Electronic structure and optical properties of GaAs(1-x)N(x) and Ga(1-x)B(x)As alloys", Procedings of the International Conference on the Physics of Semiconductors, (ICPS), Edinburgh, UK, 28 July-August 2 (2002). 253 (2003).

377. N.E. Christensen, I. Gorczyca, A. Svane, N. Gonzalez Szwacki, and P. Boguslawski, "Theoretical Studies of Semiconductors, with and without Defects, under Pressure", phys. stat. sol. (b) 235, 374 (2003).

378. N. Gonzalez Szwacki, P. Boguslawski, I. Gorczyca, N.E. Christensen, and A. Svane, "Electronic structure and optical properties of GaAs(1-x)N(x) and Ga(1-x)B(x)As alloys", Acta Phys. Polon. A 102, 633 (2002).

379. N.E. Christensen, "New high-pressure phases of simple metals", Verhandlungen der Deutschen Physikalischen Gesellschaft (5/2003), 534 (2003).

380. M. Hanfland, K. Syassen, I. Loa, N.E. Christensen, and D.L. Novikov, "Sodium at megabar pressures", Verhandlungen der Deutschen Physikalischen Gesellschaft (5/2003), 536 (2003).

381. H.P. Gunnlaugsson, G. Weyer, N.E. Christensen, M. Dietrich, M. Fanciulli, K. Bharuth-Ram, R. Sielemann, A. Svane, and the OSOLDE Collaboration, "On the kinetics of the formation of interstitial Fe-vacancy pairs in silicon at high temperatures", Proceeedings of the International Conference of Defects in Semiconductors, ICDS-22 in Aarhus July 2003, Physica B 340, 532 (2003).

382. R.E. Alonso, A. Svane, C.O. Rodriguez, and N.E. Christensen, "Nuclear quadrupole moment determination of $^{35}$Cl, $^{79}$Br and $^{127}$I", Phys. Rev. B 69, 125101 (2004).

383 F.J.H. Ehlers and N.E. Christensen, "Phosphorus under pressure: Ba-IV-type structure as a candidate for P-IV", Phys. Rev. B 69, 214112 (2004).

384. H. Teisseyre, I. Gorczyca, N.E. Christensen, A. Svane, F.B. Naranjo, and E. Calleja, "Pressure behavior of beryllium acceptor level in gallium nitride", J. Appl. Phys. 97, 043704 (2005).

385. E.L. Peltzer y Blanca, J. Desimoni, and N.E. Christensen, "Electronic structure of fcc-Fe_nX (X= C,N; n=4,8) alloys", Proc. of the international conference "At the Frontiers of Condensed Matter II" (FCM2004), 22-26 June 2004, Buenos Aires, Argentina. Physica B 354, 341 (2004).

386. M. Loekke, N.E. Christensen, J. Riishede, and A. Bjarklev, "Group-theoretical description of the triangular air silica photonic crystal- out-of-plane propagation", Optics Express 12, 6299 (2004).

387. E.L. Peltzer y Blanca, J. Desimoni, and N.E. Christensen, "First principles determination of hyperfine parameters in fcc-Fe$_8$X (X= C,N) arrangements", Hyperfine Interactions 161, 197 (2005).

388. R.E. Alonso, A. Svane, C.O. Rodriguez, and N.E. Christensen, "Erratum: Nuclear quadrupole moment determination of 35Cl, 79Br and 127I". Phys. Rev. B 70, 119901 (2004).

389. K. Hummer, C. Ambrosch-Draxl, G. Bussi, A. Ruini, M.J. Caldas, E. Molinari, R. Laskowski, and N.E. Christensen, "Ab-initio study of excitonic effects in conventional and organic semiconductors", phys. stat. solidi solidi (b) 242, 1754 (2005).

390. R. Laskowski, N.E. Christensen, G. Santi, and C. Ambrosch-Draxl, "Ab-initio calculations of excitons in GaN", Phys. Rev. B 72, 035204 (2005).

391. I. Gorczyca, N.E. Christensen, and A. Svane, "Electronic structure of GaAs_{1-x}N_{x} under pressure", Solid State Commun. 136, 439 (2005).

392. N.E. Christensen, A. Svane, and E. Peltzer y Blanca, "Electronic and structural properties of SnO under pressure", Phys. Rev. B 72, 014109 (2005).

393. N.E. Christensen, I. Gorczyca, and A. Svane, "Electronic structure of GaAs$_{1-x}$N$_{x}$ and SnO under pressure". Journ. Phys. Chem. Solids 67, 1948 (2006).

394. I. Gorczyca, N.E. Christensen, and A. Svane, "Pressure and composition dependence of the effective electron mass in GaAs(1-x)N(x)", phys. stat. sol. (b) 243, 1599 (2006).

395. R.E. Alonso, S. Sharma, C. Ambrosch-Draxl, C.O. Rodriguez, and N.E. Christensen, "Linear and non-linear optical properties of Li under pressure", Phys. Rev. B 73, 064101 (2006).

396. R. Laskowski and N.E. Christensen, "Ab initio calculations of excitons in ZnO", Phys. Rev. B 73, 045201 (2006).

397. R. Laskowski and N.E. Christensen, "Ab initio calculations of excitons in AlN and Elliott's model", Phys. Rev. B 74, 075203 (2006).

398. C. Ambrosch-Draxl, K. Hummer, S. Sagmeister, R. Laskowski, N. E. Christensen, Ab-initio calculation of excitons in conventional and organic semiconductors", Bulletin of the American Phys. Soc. 50 No.1, 1074 (2005).

399. N.E. Christensen and R. Laskowski, "Ab-initio calculations of excitons in wurtzite semiconductors", Bulletin of the American Phys. Soc. 51, 1301 (2006).

400. A. Svane, N.E. Christensen, L. Petit, Z. Szotek, and W.M. Temmerman, "Electronic structure of rare-earth impurities in GaAs and GaN", Phys. Rev. B 74, 165204 (2006).

401. N.E. Christensen and D.L. Novikov, "Calculated superconductive properties of Li and Na under pressure", Phys. Rev. B 73 224508 (2006).

402. R. Laskowski and N.E. Christensen, "Optical properties of AlN and GaN under pressure: An ab initio study"; physica status sol. (b) 244, 17-23 (2007).

403. I. Gorczyca, P. Boguslawski, A. Svane, and N.E. Christensen, "Electronic Structure of GaAs(1-x)N(x) under Pressure", (Review), Chapter 4 in "Dilute III-V Nitride Semiconductors" ed. by Ayse Erol, Springer Series in "Materials Science" Vol. 105 p. 91, Springer Verlag Berlin Heidelberg 2008.

404. R. Laskowski and N.E. Christensen, "Pressure-induced Wannier->Frenkel transition of excitons in AlN", Phys. Rev. B 75, 201202 (2007). (RC).

405. N.E. Christensen, J. Kudrnovsky, and C.O. Rodriguez, "Metamagnetic behavior in Fe3Si and Fe3Al", Int. J. Mater. Sci. Simu. 1, 1 (2007). (Org. version: See publ. 248). ( http://www.itwell.us/ ) Journal closed. See publ. 417.

406. A. Munoz and N.E. Christensen, "Papers presented at the Twelfth International Conference on High Pressure Semiconductor Physics (HPSP-12)- CosmoCaixa Museum, Barcelona, Spain, 31 July- 3 August 2006 - Preface. phys. stat. sol. (b) 244, 13-13 (2007).

407. A. Kaminska, G. Franssen, T. Suski, I. Gorczyca, N.E. Christensn, A. Svane, A. Suchocki, H. Lu, W.J. Schaff, E. Dimakis, and A. Georgakilas, "Role of conduction-band filling in the hydrostatic-pressure dependence of photoluminescence from InN", Phys. Rev. B 76, 075203 (2007).

408. I. Gorczyca, L. Dmowski, J. Plesiewicz, T. Suski, N. E. Christensen, A. Svane, C. S. Gallinat, G. Koblmueller, and J. S. Speck, "Electronic structure and effective masses of InN under pressure", J. Appl. Phys. 104, 013704 (2008).

409. I. Gorczyca, N.E. Christensen, A. Svane, K. Laaksonen, and R.M. Nieminen, "Electronic band structure of In(x)Ga(1-x)N under pressure, Acta Phys. Polon. A 112, 203 (2007).

410 E.L. Peltzer y Blanca, J. Desimoni, S. Cottenier and N.E. Christensen, " Ab initio calculations of Fe4N electronic properties and Moessbauer hyperfine parameters", internal report (2008).

411. I. Gorczyca, L. Dmowski, J. Plesiewicz, T. Suski, N. E. Christensen, A. Svane, C. S. Gallinat, G. Koblmueller, and J. S. Speck, "Band structure and effective mass of InN under pressure", phys. stat. sol. (b) 245, 887 (2008).

412. G. Franssen, I. Gorczyca, T. Suski, A. Kaminska, J. Pereiro, E. Munoz, E. Iliopoulus, S. Georgakilas, S.B. Che, Y. Ishitani, A. Yoshikawa, N.E. Christensen, and A. Svane, "Bowing of the band gap pressure coefficient in In(x)Ga(1-x)N alloys, J. Appl. Phys. 103, 033514 (2008).

413. N.E. Christensen, I. Gorczyca, R. Laskowski, A. Svane, R.C. Albers, A.N. Chantis, T. Kotani, and M. van Schilfgaarde, "Electronic and Optical Properties of III-Nitrides under Pressure", phys. stat. sol. (b) 246, 570 (2009).

414. T.G. Pedersen, P. Modak, K. Pedersen, N.E. Christensen, M.M. Kjeldsen, and A.N. Larsen, "Ab Initio calculation of electronic and optical properties of metallic tin". J. Phys.: Condens. Matter 21, 115502 (2009).

415. A.N. Chantis, M. Cardona, N.E. Christensen, D.L. Smith, M. van Schilfgaarde, T. Kotani, A. Svane, and R.C. Albers, "Strain-Induced Conduction Band Splitting in GaAS from First Principles Calculations", Phys. Rev. B 78, 075208 (2008).

416. R.E. Alonso, L.A. Errico, E.L. Peltzer, A. Lopez-Garcia, A. Svane, and N.E. Christensen, "Ab initio study of structural and electronic properties and hyperfine interactions at the Ta nucleus in Ta-doped monoclinic HfO2", Phys. Rev. B 78, 165206 (2008).

417. N.E. Christensen, J. Kudrnovsky, and C.O. Rodriguez, "Metamagnetic behavior in Fe3Si and Fe3Al", Int. J. Nanoelectronics and Materials 1, 1 (2008). (Org. version: See publ. 248).

418. I. Gorczyca, T. Suski, N. E. Christensen and A. Svane, {\it Bowing of the band gap and its pressure coefficient in In$_x$Ga$_{1-x}$N and In$_x$Al$_{1-x}$N alloys}, IWN2008 Conference, extended abstract (2008).

419. I. Gorczyca, T. Suski, N. E. Christensen and A. Svane, "Gap Bowing in InxGa{1-x}N and InxAl{1-x}N under Pressure", phys. stat. sol. (c) 6, No. S2, S368 (2009). (DOI 10.1002/pssc.200880890 ).

420. E. Peltzer y Blanca, J. Desimoni, N.E. Christensen, H. Emmerich, and S. Cottenier, " The magnetization of gamma'-Fe_4N: Theory vs. experiment, submitted 2008 to phys. stat. sol. (b) 246, 909 (2009) (Feature Article).

421. A.N. Chantis, R.C. Albers, A. Svane, and N.E. Christensen; "GW correlation effects on plutonium quasiparticle energies: Changes in crystal-field splitting." Phil. Mag. 89, 1801 (2009).

422. G. Franssen, A. Kaminska, T. Suski, I. Gorczyca, N.E. Christensen, A. Svane, H. Lu, W.J. Schaff, E. Dimakis, A. Georgakilas, S.B. Che, Y. Ishitani, and A. Yoshikawa, "Conduction band filling in In-rich InGaN and InN under hydrostatic pressure". phys. stat. sol. (c) 5 1488 (2008).

423. I. Gorczyca, L. Dmowski, J. Plesiewicz, T. Suski, N. E. Christensen, A. Svane, C. S. Gallinat, G. Koblmueller, and J. S. Speck, "Electronic structure and effective masses of InN under pressure", Extended abstract, ICNS-7, Las Vegas 16-21 Sept. 2007.

424. T. Suski, I. Gorczyca, G. Franssen, A. Kaminska, N.E. Christensen, A. Svane, A. Suchocki, H. Lu, W.J. Schaff, E. Iliopoulos, and A. Georgakilas, "Conduction band nonparabolicity and band filling in InN under hydrostatic pressure". Extended abstract, ICNS-7, Las Vegas 16-21 Sept. 2007.

425. R. Laskowski, N.E. Christensen, P. Blaha, and B. Palanivel "Strong excitonic effects in the tranparent conductive oxide CuAlO2", Phys. Rev. B 79. 165209 (2009).

426 P. Modak, A. Svane, N.E. Christensen, T. Kotani, and M. van Schilfgaarde, "Pressure variation of the valence band width in Ge: A self-consistent GW study", Phys. Rev. B 79, 153203 (2009).

427. G. Vaitheeswaran, V. Kanchana, Ravhi. S. Kumar, A.L. Cornelius, M.F. Nicol, A. Svane, N.E. Christensen, and O. Eriksson, "High pressure structural study of fluoro perovskite CsCdF_3 up to 60 GPa: A combined experimental and theoretical study." Phys. Rev. B 81, 075105 (2010).

428. I. Gorczyca, S.P. Lepkowski, T. Suski, N.E. Christensen, and A. Svane, "Influence of indium clustering on the band structure of semiconducting ternary and quaternary nitride alloys", Phys. Rev. B 80, 075202 (2009).

429. R.C. Albers, N.E. Christensen, and A. Svane, "Hubbard-U band-structure methods" J. Phys.: Condens. Mattter 21, 343201 (2009).

430. N.E. Christensen, A. Svane, R. Laskowski, B. Palanivel, P. Modak, A.N. Chantis, M. van Schilfgaarde, and T. Kotani, "Electronic properties of 3R-CuAlO$_2$ under pressure: Three theoretical approaches", Phys. Rev. B 81, 045203 (2010).

431. I. Gorczyca, T. Suski, N.E. Christensen, and A. Svane, "In-clustering induced anomalous behavior of band gap in AlN and GaN" Proceedings of the E-MRS conf., Warsaw 2009. Phys. Status Solidi C 7, 1283 (2010).

432. I. Gorczyca, T. Suski, A. Kaminska, G. Staszcak,N.E. Christensen, and A. Svane, "In-clustering effects in InAlN and InGaN revealed by high pressure studies" Phys. Status Solidi A 207,1369 (2010).

433. I. Gorczyca, T. Suski, and A. Svane, "Limitations to gap tuning in nitride semiconductors", Appl. Phys. Lett. 96, 101907 (2010).

434. A. N. Chantis, N. E. Christensen, A. Svane, and M. Cardona, "Full-zone analysis of relativistic spin splitting at band anticrossings: The case of zinc-blende semiconductors", Phys. Rev. B 81, 205205 (2010).

435. A. Svane, N. E. Christensen, M. Cardona, A. N. Chantis, M. van Schilfgaarde, and T. Kotani, "Quasiparticle self-consistent GW calculations for PbS, PbSe and PbTe: Band structure and pressure coefficients", Phys. Rev. B 81, 245120 (2010).

436. A. Svane, N. E. Christensen, and M. Cardona, "Quasiparticle self-consistent GW calculations for PbS, PbSe and PbTe: Band structure and pressure coefficients", Bull. Am. Phys. Soc. {\bf 52}, Number 2 (2010).

437. N. E. Christensen and A. Svane, "Electronic properties 3R-CuAlO$_2$ under pressure: Three theoretical approaches.", Bull. Am. Phys. Soc. {\bf 52}, Number 2 (2010).

438. A. N. Chantis, A. Svane. N. E. Christensen and M. Cardona, "Large relativistic spin splittings in the band structures of III-V and II-VI semiconductors", Bull. Am. Phys. Soc. {\bf 52}, Number 2 (2010).

439. I. Gorczyca, A. Kaminska, G. Staszczcak, S. P. Lepkowski, T. Suski, H. P. D. Schenk, M. Glauser, R. Butte, J.-F. Carlin, E. Feltin, N. Grandjean, N. E. Christensen, and A. Svane, "Anomalous composition dependence of the band-gap pressure coefficients in In-containing nitride semiconductors". Phys. Rev. B 81, 235206 (2010).

440. N.E. Christensen, A. Svane, M. Cardona, A.N. Chantis, R. Laskowski, M. van Schilfgaarde, and T. Kotani, "Calculations of quasi-particle spectra of semiconductors under pressure", Phys. Status Solidi B 248, 1096 (2011).

441. A. Svane, N. E. Christensen, I. Gorczyca, M. van Schilfgaarde, A.N. Chantis, and T. Kotani, "Quasiparticle self-consistent GW calculations for InN, GaN and InGaN2: Band structure and pressure coefficients". Phys. Rev. B 82, 115102 (2010).

442. M.K. Forthaus, K. Sengupta, O. Heyer, N.E. Christensen, A. Svane, K. Syassen, D.I. Khomskii, T. Lorenz, and M.M. Abd-Elmeguid, "Superconductivity in SnO: A Nonmagnetic Analogue to Fe-based Superconductors?", Phys. Rev. Lett. 105, 157001 (2010).

443. M.A. Taylor, R.E. Alonso, L.A. Errico, A. Lopez-Garcia, P. de la Presa, A. Svane, and N.E. Christensen, " Coexcistence of different charge states in Ta-doped monoclinic HfO$_2$. Theoretical and experimental approaches." Phys. Rev. B 82, 165203 (2010).

444. I. Gorczyca, T. Suski, N. E. Christensen, and A. Svane, "Band Gap Bowings and Anomalous Pressure Effects in III-V Nitride Alloys. Role of In-segregation". Phys. Status Solidi A 208, 1558 (2011)

445. I. Gorczyca, T. Suski, N. E. Christensen, and A. Svane, "Size effects in band gap bowing in nitride semiconducting alloys". Phys. Rev. B 83, 153301 (2011).

446. I. Gorczyca, T. Suski, N. E. Christensen, and A. Svane, "Band gap bowing in quaternary nitride semiconducting alloys", Appl. Phys. Lett. 98, 241905 (2011).

447. G. Vaitheeswaran, V. Kanchana, A. Svane, N.E. Christensen, J. Staun Olsen, J.-E. J{\o}rgensen, and L. Gerward, "High-pressure structural study of yttrium monochalcogenides from experiment and theory." Phys. Rev. B 83,184108 (2011).

448. A.K. Verma, P. Modak, A. Svane, and N.E. Christensen, "Atomic structure and electronic properties of Si(_x)Sb(_{100-x}) phase-change memory material". Phys. Rev. B 83,134205 (2011).

449. A. Svane, N. E. Christensen, M. Cardona, M. van Schilfgaarde, A.N. Chantis, and T. Kotani, "Quasiparticle band structures of beta-HgS, HgSe, and HgTe." Phys. Rev. B 84, 205205 (2011).

450. I. Gorczyca, T. Suski, N. E. Christensen, and A. Svane, "Role of In-segregation in anomalously large band gap bowings of (In,Al,Ga)N." Proceedings of SPIE - The International Society for Optical Engineering, 7939, art. no. 79390J (2011).

451. M.A. Taylor, R.E. Alonso, L.A. Errico, A. Lopez-Garcia, P. de la Presa, A. Svane, and N.E. Christensen, "Structural, electronic and hyperfine properties of pure and Ta-doped ZrO$_2$." Phys. Rev. B. {\bf 85} 155202 (2012).

452. A. Svane, R. C. Albers, N. E. Christensen, M. van Schilfgaarde, Jian-Xin Zhu, and A.N. Chantis, "The Electronic Correlation Strength of Pu." submitted (2011).

453. S. Appalakondaiah, G. Vaitheeswaran, S. Lebegue, N. E. Christensen, and A. Svane, "Effect of van der Waals interactions on the structural and elastic properties of black phosphorus." submitted (2011).

454. Swetarekha Ram, V. Kanchana, G. Vaitheeswaran, A. Svane, S. B. Dugdale, A. Svane, and N. E. Christensen, "Electronic topological transition in LaSn_3 under pressure", In print, Phys. Rev. B (2012).

455. I. Gorczyca, T. Suski, N. E. Christensen, and A. Svane, " Band Structure and Confined Stark Effect in InN/GaN Superlattices." In print, Crystal Growth and Design (2012).