Quasielastic light scattering in silicon

M. W. Anderson, Stuart Lindsay, R. T. Harley

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

An investigation of the origin of quasielastic light scattering from silicon surfaces, first observed by Sandercock (1972, 1978) is described. Measurements have been made of the dependence of the quasielastic spectrum upon temperature, wavevector, doping level, and polarisation and intensity of incident light. The results rule out the possibilities of scattering by free electrons or by entropy fluctuations in a collision-dominated phonon regime. A simplified calculation suggests that two-phonon difference scattering may be the origin of the observed spectrum with the main contribution coming from pairs of optic phonons on the same dispersion branch.

Original languageEnglish (US)
Article number038
Pages (from-to)6877-6882
Number of pages6
JournalJournal of Physics C: Solid State Physics
Volume17
Issue number36
DOIs
StatePublished - Dec 1 1984

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)

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