Publications in Scientific Journals:

G. Kresse, M. Schmid, E. Napetschnig, M. Shishkin, L. Köhler, P. Varga:
"Structure of the ultrathin aluminum oxide film on NiAl(110)";
Science, 308 (2005), 1440 - 1442.

English abstract:
The well-ordered aluminum oxide film formed by oxidation of the NiAl(110) surface is the most intensely studied metal surface oxide, but its structure was previously
unknown. We have determined the structure by extensive ab-initio modeling and scanning tunneling microscopy experiments. Since the topmost aluminum atoms are
pyramidally and tetrahedrally coordinated, the surface is different from all Al2O3 bulk phases. The film is a wide-gap insulator, although the overall stoichiometry of the film is
not Al2O3 but Al10O13. We propose that the same building blocks can be found on the surfaces of bulk oxides such as the reduced corundum (0001) surface.

Corresponding author: G. Kresse. Reprints also available from M. Schmid (schmid).

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