Relaxation rate of excited electrons in metals: A nonperturbative calculation based on kinetic theory

I. Nagy, J. I. Juaristi, and P. M. Echenique
Phys. Rev. B 63, 035102 – Published 27 December 2000
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Abstract

By using an effective independent-particle model for an interacting electron gas, the relaxation rate of excited electrons close enough to the Fermi surface is calculated. The theoretical description is based on a binary collision treatment, implemented by an approximate nonlinear characterization of the residual screened interactions and exact phase-shift calculations. The important constituents of a consistent attempt are discussed. The results obtained are analyzed and compared to those based on perturbative linear-screening predictions. Reductions in the lifetime of excited electrons are found. Comparisons with experimental data from different sources are made.

  • Received 30 June 2000

DOI:https://doi.org/10.1103/PhysRevB.63.035102

©2000 American Physical Society

Authors & Affiliations

I. Nagy1,2, J. I. Juaristi3, and P. M. Echenique3,4

  • 1Department of Theoretical Physics, Institute of Physics, Technical University of Budapest, H-1521 Budapest, Hungary
  • 2Donostia International Physics Center, 20080 San Sebastián, Spain
  • 3Departamento de Física de Materiales, Facultad de Ciencias Químicas, Universidad del País Vasco, Aptdo. 1072, 20080 San Sebastián, Spain
  • 4Centro Mixto CSIC-UPV/EHU, Aptdo. 1072, 20080 San Sebastián, Spain

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Vol. 63, Iss. 3 — 15 January 2001

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