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Title: Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State

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 photohole. The electron-phonon induced mass enhancement and rapid change of the photohole lifetime near the Fermi level are observed for the first time. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
; ;  [1];  [2]
  1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
  2. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Publication Date:
OSTI Identifier:
686477
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MOLYBDENUM; PHOTOEMISSION; MANY-BODY PROBLEM; SURFACE PROPERTIES; ELECTRON-PHONON COUPLING; ELECTRON-ELECTRON INTERACTIONS; QUASI PARTICLES; EFFECTIVE MASS; ANGULAR DISTRIBUTION

Citation Formats

Valla, T., Fedorov, A.V., Johnson, P.D., and Hulbert, S.L. Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.2085.
Valla, T., Fedorov, A.V., Johnson, P.D., & Hulbert, S.L. Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State. United States. doi:10.1103/PhysRevLett.83.2085.
Valla, T., Fedorov, A.V., Johnson, P.D., and Hulbert, S.L. Wed . "Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State". United States. doi:10.1103/PhysRevLett.83.2085.
@article{osti_686477,
title = {Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State},
author = {Valla, T. and Fedorov, A.V. and Johnson, P.D. and Hulbert, S.L.},
abstractNote = {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 photohole. The electron-phonon induced mass enhancement and rapid change of the photohole lifetime near the Fermi level are observed for the first time. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.83.2085},
journal = {Physical Review Letters},
number = 10,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}