Microstructure of CuAu-I-type ordered phase in III-V semiconductor alloys grown on a (001) substrate

Manabu Ishimaru, Syo Matsumura

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have investigated via Monte Carlo simulations the microstructure of the CuAu-I ordered phase in III-V semiconductor alloys of ((Formula presented)(Formula presented))C grown on (001) substrates. The Fourier power spectra of atomic configurations in the computer-generated structures could reproduce the features of the electron-diffraction patterns reported previously. Among the three possible variants of the CuAu-I structure, a simulated (001) epilayer contains two variants which have their tetragonal c-axis parallel to the (001) plane. We have found that the CuAu-I ordering occurs even in an off-stoichiometric alloy with x=0.25, but a low-deposition rate at a low growth temperature forms a short-range-order state of a (Formula presented)Au type.

Original languageEnglish
Pages (from-to)10814-10819
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number15
DOIs
Publication statusPublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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