Coordination dependent vibrational properties of amorphous semiconductors alloys

G. Lucovsky, R. J. Nemanich, S. A. Solin, R. C. Keezer

Research output: Contribution to journalArticle

81 Scopus citations

Abstract

The i.r., Raman and depolarization spectra of the amorphous pseudo-binary alloy systems (GeS2)1-χ(As2S3)χ and (GeSe2)1-χ(As2Se3)χ are reported here. In contrast to the one-mode behavior that is anticipated on the basis of the mass ratio of the alloy atoms (Ge/As), two bond-stretching modes are observed in both the i.r. and Raman spectra. This new type of phonon behavior is interpreted in terms of differences in the local coordination via a chemical bonding model.

Original languageEnglish (US)
Pages (from-to)1567-1572
Number of pages6
JournalSolid State Communications
Volume17
Issue number12
DOIs
StatePublished - Dec 15 1975
Externally publishedYes

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ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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