Many-body Effects in Angle-resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State

Preprint

11 May 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9904449

Abstract

In a high-resolution photoemission study of a Mo(110) surface state various contributions to the measured width and energy of the quasiparticle peak are investigated. Electron-phonon coupling, electron-electron interactions and scattering from defects are all identified mechanisms responsible for the finite lifetime of a valence photo-hole. The electron-phonon induced mass enhancement and rapid change of the photo-hole lifetime near the Fermi level are observed for the first time.

Keywords

RESOLVED PHOTOEMISSION
ELECTRON PHONON
ANGLE RESOLVED
SURFACE STATE
QUASIPARTICLE
SCATTERING
PHOTO HOLE
LIFETIME
PHONON

All Related Versions

Version 1, 1999-04-30, ArXiv
Version 2, 1999-05-11, ArXiv
Published version: Physical Review Letters, 83 (10), 2085.

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