Abstract

An anisotropic Meyer and Deitz potential has been used to describe the interaction between rare gas atoms and carbon atoms in graphite. Potential energies of adsorption have been calculated by extending to this interaction law the method developed by Steele for the Lennard-Jones case. Energy band structures for rare gases adsorbed on the basal plane of graphite have been calculated. A discussion of the effects of the introduced anisotropy shows that the general conclusions already drawn when using Lennard-Jones Isotropie potentials are not altered in any substantial manner, even if potential barriers to surface migration are about 50% higher in this case.

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