Publications in Scientific Journals:
M. Schmid, A. Garhofer, J. Redinger, F. Wimmer, P. Scheiber, P. Varga:
"Unusual Cluster Shapes and Directional Bonding of an fcc Metal: Pt/Pt(111)";
Physical Review Letters,
Small clusters of Pt adatoms grown on Pt(111) exhibit a preference for the formation of linear chains, which cannot be explained by simple diffusion-limited aggregation. Density functional theory calculations show that short chains are energetically favorable to more compact configurations due to strong directional bonding by dz2 -like orbitals, explaining the stability of the chains. The formation of the chains is governed by substrate distortions, leading to funneling towards the chain ends.
Created from the Publication Database of the Vienna University of Technology.