Residual strains and disorder in ZnSSe epitaxial films on GaAs

Yoshihiko Kanemitsu, Aishi Yamamoto, Hitoshi Matsue, Hiroyuki Nabeta, Yasuaki Masumoto, Shigeki Yamaga, Akihiko Yoshikawa, Kazushi Yamanaka, Yoshihiko Nagata, Toshio Koda

Research output: Contribution to journalArticlepeer-review


A new experimental and analytical method was demonstrated for the quantitative evaluation of disorder and strains in ZnSxSe1-x/GaAs heterostructures. The alloy disorder and the average size of ZnSe microclusters in epitaxial ZnSxSe1-x films were estimated from the linewidth of the ZnSe-like LO-phonon Raman signal. The linewidth of the GaAs LO-phonon Raman signals and the magnitude of photoacoustic signals were sensitive to strains near the interface due to the lattice mismatch between ZnSSe and GaAs. This technique provides microscopic understanding of the disorders and strains in lattice-mismatched semiconductor heterostructures.

Original languageEnglish
Pages (from-to)316-319
Number of pages4
JournalJournal of Crystal Growth
Issue number1-4
Publication statusPublished - 1992 Feb 2

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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