Surface-state electron dynamics in noble metals

Theoretical investigations of surface-state electron dynamics in noble metals are reported. The dynamically screened interaction is computed, within many-body theory, by going beyond a free-electron description of the metal surface. Calculations of the inelastic linewidth of Shockley surface-state e...

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Bibliographic Details
Published in:Progress in surface science 2001, Vol.67 (1), p.271-283
Main Authors: Echenique, P.M., Osma, J., Machado, M., Silkin, V.M., Chulkov, E.V., Pitarke, J.M.
Format: Article
Language:English
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Summary:Theoretical investigations of surface-state electron dynamics in noble metals are reported. The dynamically screened interaction is computed, within many-body theory, by going beyond a free-electron description of the metal surface. Calculations of the inelastic linewidth of Shockley surface-state electrons and holes in these materials are also presented. While the linewidth of excited holes at the surface-state band edge ( k ∥=0 ) is dominated by a two-dimensional (2D) decay channel, within the surface-state band itself. The calculations indicate that major contributions to the electron–electron interaction of surface-state electrons above the Fermi level come from the underlying bulk electrons.
ISSN:0079-6816
1878-4240
DOI:10.1016/S0079-6816(01)00029-6