Inter- and intraband inelastic scattering of hot surface state electrons at the Ag(111) surface

L Vitali*, P Wahl, MA Schneider, K Kern, VM Silkin, EV Chulkov, PM Echenique

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The phase coherence length and the corresponding lifetime of hot electrons in the surface state band of Ag(1 1 1) have been measured with a low temperature STM for energies from the Fermi level to 3 eV. A divergence of the lifetime from a (E - E-F)(-2) behavior has been observed for energies lower than 400 meV. Theoretical analysis in terms of electron-electron and electron-phonon scattering mechanisms shows that the energy dependence of the lifetime is accounted for by the competition between intra- and interband electron-electron inelastic scattering and electron-phonon contributions. (C) 2002 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Article numberPII S0039-6028(02)02406-8
Pages (from-to)L47-L52
Number of pages6
JournalSurface Science
Volume523
Issue number1-2
Publication statusPublished - 10 Jan 2003

Keywords

  • silver
  • scanning tunneling microscopy
  • electron-solid interactions, scattering, diffraction
  • IMAGE-POTENTIAL STATES
  • METAL-SURFACES
  • PHOTOELECTRON-SPECTROSCOPY
  • NOBLE-METALS
  • DYNAMICS
  • PHOTOEMISSION
  • LIFETIMES
  • GAS

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