The structural and elastic properties of InSb1-xBix alloys

被引：14
|
作者：
Saeidi, Parviz [1 ]
Kaviyani, Mohammad Hossein Shahidi [2 ]
Yalameha, Shahram [1 ]
机构：
[1] Univ Isfahan, Fac Sci, Dept Phys, Esfahan, Iran
[2] Univ Isfahan, Fac Adv Technol, Dept Nanophys, Esfahan, Iran
来源：
COMPUTATIONAL CONDENSED MATTER | 2019年 / 18卷
关键词：
Density functional theory; InSb1-xBix alloys; Structural properties; Elastic properties; NEGATIVE POISSON RATIOS; ELECTRONIC-PROPERTIES; OPTOELECTRONIC PROPERTIES; THERMODYNAMIC PROPERTIES; PHASE-STABILITY; 1ST-PRINCIPLES; CONSTANTS; GROWTH; CRYSTAL; BISMUTH;
D O I：
10.1016/j.cocom.2018.e00358
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Based on density functional theory, the structural and elastic properties of InSb1-xBix alloys have been studied using first principle calculations. The generalized gradient approximation in the presence of spin-orbit coupling is utilized to perform the calculations presented in this paper. The calculated lattice constants of InSb1-xBix alloys are in good agreement with the available experimental data. The mechanical stability of these alloys is demonstrated using elastic constants. The ductility and brittleness of these alloys are investigated using both Poisson's ratio and Pugh's ratio. Moreover, the anisotropy of InSb1-xBix alloys is studied using the universal index and the 3D representation of Young's modulus. According to the obtained values of Poisson's ratio, the InSb0.5Bi0.5 and InBi alloys are auxetic materials. (C) 2018 Elsevier B.V. All rights reserved.
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页数：7
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