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Surface-state electron dynamics in noble metals

P. M. Echenique·J. Osma·M. Machado·V. M. Silkin·E. V. Chulkov·J. M. Pitarke
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Abstract

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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P. M. Echenique, J. Osma, M. Machado, V. M. Silkin, E. V. Chulkov, J. M. Pitarke. 2000-10-04. Surface-state electron dynamics in noble metals. https://doi.org/10.1016/s0079-6816(01)00029-6

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