First evidence for vibrational excitations of large atomic clusters in amorphous semiconductors

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

Research output: Contribution to journalArticle

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Abstract

Raman and depolarization spectra of GeSe2 alloyed with Se or As2Se reveal a sharp vibrational doublet, only one component of which can be attributed to a vibrational excitation of the GeSe2 local atomic cluster. The composition dependence of the intensity and polarization of the second feature identify it as an excitation involving a substantially larger cluster with high symmetry. The large cluster is a ring of Ge atoms inter-connected through single Se atoms.

Original languageEnglish (US)
Pages (from-to)273-276
Number of pages4
JournalSolid State Communications
Volume21
Issue number3
DOIs
StatePublished - Jan 1977
Externally publishedYes

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ASJC Scopus subject areas

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

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