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

Fingerprint

Phonons
Phonon scattering
inhomogeneity
Electron Energy-Loss Spectroscopy
scattering
Linear Models
Surface scattering
Adatoms
Electron energy loss spectroscopy
Brillouin zones
solid surfaces
adatoms
low concentrations
phonons
energy dissipation
electron energy
Atoms
symmetry
approximation
spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Surface-surface phonon scattering by surface inhomogeneities. / Khater, A.; Auby, N.; Kechrakos, D.

In: Journal of Physics: Condensed Matter, Vol. 4, No. 14, 006, 1992, p. 3743-3752.

Research output: Contribution to journalArticle

Khater, A. ; Auby, N. ; Kechrakos, D. / Surface-surface phonon scattering by surface inhomogeneities. In: Journal of Physics: Condensed Matter. 1992 ; Vol. 4, No. 14. pp. 3743-3752.
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