Positron annihilation studies in GaxIn1-xAs

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

doi:10.1016/0038-1098(95)00470-X

Positron annihilation studies in Ga_xIn_1-xAs

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

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The effect of alloying on the electron-positron momentum densities, ρ{variant}(p), in Ga_xIn_1-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 language	English
Pages (from-to)	987-991
Number of pages	5
Journal	Solid State Communications
Volume	96
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(95)00470-X
Publication status	Published - Dec 1995
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/0038-1098(95)00470-X

Cite this

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title = "Positron annihilation studies in GaxIn1-xAs",

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).",

keywords = "A. semiconductors, D. electronic band structure, D. electronic states, D. order-disorder effects",

author = "B. Soudini and N. Amrane and N. Badi and B. Khelifa and H. Aourag",

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T1 - Positron annihilation studies in GaxIn1-xAs

AU - Soudini, B.

AU - Amrane, N.

AU - Badi, N.

AU - Khelifa, B.

AU - Aourag, H.

PY - 1995/12

Y1 - 1995/12

N2 - 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).

AB - 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).

KW - A. semiconductors

KW - D. electronic band structure

KW - D. electronic states

KW - D. order-disorder effects

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