Theoretical investigation of disorder effect on positron states in GaxIn1−xAsySb1−y/GaSb
作者： N. Bouarissa
DOI: 10.1016/S0022-3697(01)00008-7
关键词: Chemistry 、 Condensed matter physics 、 Charge density 、 Alloy 、 Positron 、 Pseudopotential 、 Electronic band structure 、 Effective mass (solid-state physics) 、 Wave function 、 Ionic potential
摘要: Abstract A pseudopotential formalism under the virtual crystal approximation with and without incorporating effect of alloy disorder is applied to study positron behaviour in cubic Ga x In 1− As y Sb quaternary system lattice matched GaSb. To best our knowledge, this first time a has been carried out on such an alloy. The wavefunctions have calculated employing point-core for ionic potential. Our results show that positronic properties are generally very weakly affected by disorder.
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