Dependence of the He-Scattering Potential at Surfaces on the Surface-Electron-Density Profile
- 8 September 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 45 (10) , 807-810
- https://doi.org/10.1103/physrevlett.45.807
Abstract
It is shown that the repulsive part of the He-surface interaction is given by an almost linear, surface-independent function of the surface electron density at the He site. This gives a very simple connection between the measured low-energy He-beam scattering potentials and the substrate electron densities. The scheme is applied to an analysis of the He-scattering potential outside Al.Keywords
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