Image-potential states at metal surfaces
- 20 April 1986
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 19 (11) , L209-L213
- https://doi.org/10.1088/0022-3719/19/11/001
Abstract
Density-functional theory is applied to calculate image-potential states at metal surfaces with different electron densities (rs=2, 3, 4, 5, 6). The surface potential, obtained from a self-consistent quantum mechanical calculation based on the jellium model, yields the correct long-range image potential, since a non-local exchange-correlation energy functional is used. The many-body effects lead to drastic changes in the energies of the Rydberg states n=1, 2, both at high and at low electron densities.Keywords
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