Lattice dynamical and elastic properties of mixed quaternary semiconducting alloys CuGa1-xAlxS2 and AgxCu1-xGaS2

被引：1
作者：
Kushwaha, A. K. [1 ]
Vishwakarma, M. K. [1 ]
Akbudak, S. [2 ]
机构：
[1] KN Govt PG Coll, Dept Phys, Gyanpur 221304, Bhadohi, India
[2] Adiyaman Univ, Dept Phys, Fac Arts & Sci, TR-02100 Adiyaman, Turkey
来源：
MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 02期
关键词：
mixed quaternary chalcopyrite; elastic constants; phonons; THIN-FILMS; CHALCOPYRITE; DEFECTS; CUGAS2; CUINS2;
D O I：
10.1088/2053-1591/aaeb6b
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ten parameter rigid-ion model is used to study the vibrational and elastic properties of mixed quaternary semiconducting CuGa1-xAlxS2 and AgxCu1-xGaS2 chalcopyrites alloys. The zone-centre phonon frequencies and the elastic properties of above mentioned alloys are calculated for the composition range 0 <= x <= 1. The main outcome of the present study is that the studied compounds are mechanically stable at all compositions of x. While the elastic constants C-33 and C-44 change sharply in comparison with other elastic constants for AgxCu1-xGaS2, all elastic constants of the CuGa1-xAlxS2 do not change too much with the increase in the concentration of Al-and Ag-atoms in CuGa1-xAlxS2 and AgxCu1-xGaS2 compounds.
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页数：8
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