Density functional study of the adsorption of K on the Cu(111) surface
Institut für Mathematische Physik, TU Braunschweig,
Mendelssohnstraße 3, 38106 Braunschweig, Germany
Corresponding author: a email@example.com
Published online: 15 August 2001
The adsorption of potassium on the Cu(111) surface in a 2x2 pattern has been simulated with all-electron full-potential density functional calculations. The top site is found to be the preferred adsorption site, with the other highly symmetric adsorption sites being nearly degenerate. The bond length from potassium to the nearest copper atom is computed to be 2.83 Å. Population analysis and density of states indicate that there is no evidence for covalent bonding so that the binding mechanism appears to be a metallic bond.
PACS: 68.43.Bc – Ab initio calculations of adsorbate structure and reactions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001