Positron annihilation studies in GaxIn1-xAs

B. Soudini, N. Amrane, N. Badi, B. Khelifa, H. Aourag

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The effect of alloying on the electron-positron momentum densities, ρ{variant}(p), in GaxIn1-xAs is reported. Our computations of ρ{variant}(p) are based on the independent particle approximation (IPM) coupled with the empirical pseudopotential method (EPM). To make allowance for the chemical disorder, the virtual crystal approximation is used, including a correction to the alloy potential. An illustrative result of the electron-positron momentum densities show a deviation from linearity at low momentum which indicates the alloying effect (bowing effect).

Original languageEnglish
Pages (from-to)987-991
Number of pages5
JournalSolid State Communications
Volume96
Issue number12
DOIs
Publication statusPublished - Dec 1995
Externally publishedYes

Keywords

  • A. semiconductors
  • D. electronic band structure
  • D. electronic states
  • D. order-disorder effects

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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