Effects of Many Body Forces on the Adsorbate Induced Phonon Structure
A model is constructed, which permits to study many body forces by gradually deviating from the standard pairwise additive central forces. It is found that an arbitrarily small deviation opens the possibility of adsorbate induced soft phonon modes. Numerical examples are given with a rough parameterization to describe adsorbed hydrogen on a Pt(111) — surface.
KeywordsMetal Atom Cluster Model Surface Atom Electron Energy Loss Spectroscopy Adsorbed Particle
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