Resonances of two phonons from different dispersion branches

J. Ruvalds, A. Zawadowski

Research output: Contribution to journalArticle

7 Citations (Scopus)


The study of two-phonon resonances is extended to include resonances of two phonons from different branches of the dispersion curve. The condition for forming a resonance as a sharp peak in the two-phonon spectrum is derived. When the 'effective masses" of the two phonons are nearly equal in magnitude, but opposite in sign, a resonance can be created by a relatively small value of the anharmonic coupling.

Original languageEnglish
Pages (from-to)129-132
Number of pages4
JournalSolid State Communications
Issue number2
Publication statusPublished - Jan 15 1971


ASJC Scopus subject areas

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

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