Second-order Raman spectra and lattice dynamics in AlAs

T. Azuhata, T. Sota, K. Suzuki

研究成果: Article査読

22 被引用数 (Scopus)

抄録

We have re-examined the second-order Raman spectra in a thick AlAs layer grown on a GaAs substrate by polarized Raman spectroscopy. So as to reproduce the spectra, the force constants have been refined and then the phonon dispersion has been calculated within a modified version of the adiabatic bond-charge model. We present phonon frequencies at critical points, e.g. Gamma , X, L and W, and the force constants for AlAs. The phonon dispersion is compared with a previous ab initio result and it is shown that the procedure presented herein is useful. A brief discussion is also given of the analysis of the second-order Raman spectra of AlSb.

本文言語English
論文番号018
ページ(範囲)1949-1957
ページ数9
ジャーナルJournal of Physics: Condensed Matter
7
9
DOI
出版ステータスPublished - 1995 12 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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