Surface-surface phonon scattering by surface inhomogeneities

A. Khater, N. Auby, D. Kechrakos

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A one-dimensional model is presented for surface phonon scattering into surface phonon channels by atomic inhomogeneities along a high symmetry direction in a solid surface. The model yields characteristic resonances over the full Brillouin zone of the model linear chain, for a monoatomic step and an adatom, at the limit of low concentrations where the approximation of an isolated inhomogeneity holds. Additional resonances are found near the step edges for a symmetric double step, these indicate weak localization of surface phonons on a slightly disordered surface. The theoretical results can, in principle, be tested by electron energy loss spectroscopy and He atom surface scattering.

Original languageEnglish
Article number006
Pages (from-to)3743-3752
Number of pages10
JournalJournal of Physics: Condensed Matter
Volume4
Issue number14
DOIs
Publication statusPublished - 1992
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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