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Electronic and Positronic Distribution in the Ternary Alloy Hg 1–x Cd x Te
Author(s) -
Meçabih S.,
Amrane N.,
Aourag H.
Publication year - 1999
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(199905)213:1<59::aid-pssb59>3.0.co;2-d
Subject(s) - pseudopotential , mole fraction , ternary operation , positron , crystal (programming language) , semiconductor , charge density , positron annihilation , electron , charge (physics) , atomic physics , materials science , condensed matter physics , chemistry , physics , nuclear physics , quantum mechanics , computer science , programming language , optoelectronics
The electron and positron charge densities are calculated as a function of position in the unit cell for the Hg 1– x Cd x Te alloy system using the empirical pseudopotential method combined with the virtual‐crystal approximation. The results show that the positron has a strong affinity to one sort of atoms in binary semiconductors. The results of the positron charge density should provide valuable insight into the effect of annihilation. The electron charge density and the ionicity character with respect to the variation of the mole fraction are discussed.