Theoretical surface physics - Bjørk Hammer


Recent research projects by Bjørk Hammer:


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We are conducting research within theoretical surface science.
It is important to know and understand the detailed atomic structure of a surface in order to know the conditions for a chemical reaction at a surface.

Here the structure of steps in two directions on rutile TiO2 is considered.

See: Steps on rutile TiO:sub:`2`(110): Active sites for water and methanol dissociation.
U. Martinez, L. B. Vilhelmsen, H. H. Kristoffersen, J. Stausholm-Møller, B. Hammer,
Phys. Rev. B 84, 205434 (2011). DOI: 10.1103/PhysRevB.84.205434

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Chiral transfer from a chiral modifier to a reacting molecule may happen if the molecules interact strongly in specific complexes on the catalyst surfaces.

We study complex formation by varying the intermolecular positions and investigate the nature of the chemical bonds within the complexes.

See: Direct observation of molecular preorganization for chirality transfer on a catalyst surface.
V. Demers-Carpentier, G. Goubert, F. Masini, R. Lafleur-Lambert, Y. Dong, S. Lavoie, G. Mahieu, J. Boukouvalas, H. Gao, A. M. H. Rasmussen, L. Ferrighi, Y. Pan, B. Hammer, and P. H. McBreen,
Science 334, 776 (2011). DOI: 10.1126/science.1208710