Lifetimes of electrons in the Shockley surface state band of Ag(111)

M. Becker; S. Crampin; R. Berndt

doi:10.1007/s00339-007-4059-9

paper

Lifetimes of electrons in the Shockley surface state band of Ag(111)

arXiv:cond-mat/0609080 · doi:10.1007/s00339-007-4059-9

Abstract

We present a theoretical many-body analysis of the electron-electron (e-e) inelastic damping rate $Γ$ of electron-like excitations in the Shockley surface state band of Ag(111). It takes into account ab-initio band structures for both bulk and surface states. $Γ$ is found to increase more rapidly as a function of surface state energy E than previously reported, thus leading to an improved agreement with experimental data.