Inelastic scattering in a local polaron model with quadratic coupling to bosons

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Abstract

We calculate the inelastic scattering probabilities in the wide band limit of a local polaron model with quadratic coupling to bosons. The central object is a two-particle Green's function which is calculated exactly using a purely algebraic approach. Compared with the usual linear interaction term a quadratic interaction term gives higher probabilities for inelastic scattering involving a large number of bosons. As an application we consider the problem hot-electron-mediated energy transfer at surfaces and use the delta self-consistent field extension of density-functional theory to calculate and compare coupling parameters and probabilities for exciting different vibrational modes of CO adsorbed on a Cu(100) surface.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume79
Issue number23
Pages (from-to)235414
ISSN0163-1829
DOIs
Publication statusPublished - 2009

Bibliographical note

Copyright 2009 American Physical Society

Keywords

  • STATES
  • SYSTEMS
  • EXCITATION
  • SPECTROSCOPIES
  • VALENCE
  • AUGMENTED-WAVE METHOD
  • DESORPTION
  • METALS
  • CU(100)
  • CO

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