Lattice dynamics of CuAlS2 and CuAlSe2

T. Azuhata, T. Terasako, K. Yoshida, T. Sota, K. Suzuki, S. Chichibu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We have measured the first-order Raman spectra of CuAlSe2 and the second-order Raman spectra of CuAlS2 and CuAlSe2, and reexamined two-phonon absorption spectra of CuAlS2. Lattice dynamical calculations have been performed using a rigid ion model. Force constants and charges as fitting parameters have been determined so as to reproduce zone-center phonon frequencies and the two-phonon spectra observed. Calculated two-phonon density of states shows reasonable agreements with those spectra.

Original languageEnglish
Pages (from-to)496-498
Number of pages3
JournalPhysica B: Condensed Matter
Volume219-220
Issue number1-4
DOIs
Publication statusPublished - 1996 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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