Alloying effect in the III-As-Sb ternary systems

Abderrezak Belabbes, A. Zaoui*, M. Ferhat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

First-principles pseudopotential plane-wave calculations are used to investigate the alloying effect on the structural and electronic properties of cubic arsenides antimonides III-As-Sb alloys. The focus is on the determination of the variation of the lattice parameter and the optical gap bowing of these alloys. We found that the Vegard's law almost perfectly met the variation of the lattice parameter. The calculated bowing parameter of the optical band gap, i.e. the nonlinearity noticed in the variation, is in agreement with the previous theoretical and experimental works. Results show that the bowing parameter of the III-As-Sb alloys has a remarkable contribution due to the structural relaxation effects and a relatively weak charge transfer effect.

Original languageEnglish (US)
Pages (from-to)210-212
Number of pages3
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume137
Issue number1-3
DOIs
StatePublished - Feb 25 2007

Keywords

  • Ab initio calculations
  • Alloy
  • Bowing

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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