Thermodynamics properties and thermal conductivity of Mg2Pb at high pressure

被引：5

作者：

Duan YongHua ^{[1
,2
]}

Sun Yong ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Technol, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Key Lab Adv Mat Yunnan Prov, Kunming 650093, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2013年 / 56卷 / 10期

基金：

中国国家自然科学基金;

关键词：

thermodynamics properties; thermal conductivity; first-principles; Mg2Pb; SEMICONDUCTORS; SILICIDE; MG2SI; MG2GE; HEAT; SN;

D O I：

10.1007/s11433-013-5130-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermodynamics properties and thermal conductivity of Mg2Pb at high pressures have been calculated by first-principles. The enthalpy of formation and heat capacity obtained at 0 GPa are in good agreement with the experiments and other theoretical results. The thermal conductivity and coefficient of thermal expansion of Mg2Pb at high pressure were evaluated. The thermal conductivity presents a second-order polynomial with pressure. The calculated thermal conductivity of Mg2Pb indicates that it is suitable to be used as thermal conductor at 0 K.

引用

页码：1854 / 1860

页数：7

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