Two-phonon resonances and hybridization of the resonance with single-phonon states

J. Ruvalds, A. Zawadowski

Research output: Contribution to journalArticle

125 Citations (Scopus)

Abstract

Considering the anharmonic phonon-phonon interactions, two-phonon resonances are studied by Green's-function methods. The two-phonon spectrum exhibits an asymmetric peak near the top of the two-phonon continuum. In the special case of a resonance consisting of two acoustic phonons, the hybridization of the resonance with a single optical phonon is possible, in agreement with experiment.

Original languageEnglish
Pages (from-to)1172-1175
Number of pages4
JournalPhysical Review B
Volume2
Issue number4
DOIs
Publication statusPublished - Jan 1 1970

ASJC Scopus subject areas

  • Condensed Matter Physics

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