Interaction of the Pt(111) surface with adsorbed Xe atoms
- 10 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (24) , 3021-3024
- https://doi.org/10.1103/physrevlett.65.3021
Abstract
The interaction potential between the Pt(111) surface and Xe atoms adsorbed upon it was calculated using the cluster method with the Kohn-Sham scheme. For a single Xe atom, an energetically most favorable on-top adsorption site, 3.0 Å above a Pt atom, was found, with an activation energy for surface diffusion of 22 MeV and a perpendicular vibration energy of 8.5 meV. This vibration energy is reduced drastically by clustering of the adsorbed Xe atoms.Keywords
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