Surface-state electron dynamics in noble metals

Details Surface-state electron dynamics in noble metals Surface-state electron dynamics in noble metals

2000-10-04

arxiv.org/abs/cond-mat/0010056v1

Prog. Surf. Sci. 67, 271 (2001)

Physics

Condensed Matter

Materials Science

17 pages, 7 figures, to appear in Prog. Surf. Sci

Scientific paper

10.1016/S0079-6816(01)00029-6

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 (${\bf k}_\parallel=0$) is dominated by a two-dimensional decay channel, within the surface-state band itself, our calculations indicate that major contributions to the electron-electron interaction of surface-state electrons above the Fermi level come from the underlying bulk electrons.

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