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Thermal conductivity of GaAs/AlAs superlattices: The Umklapp process
Yang, YR; Yan, XH; Cao, JX; Xiao, Y; Mao, YL; Xiang, J; Yu, HL; Yan, XH , Xiangtan Univ, Dept Phys, Xiangtan 411105, Peoples R China.
2004
发表期刊CHINESE PHYSICS
ISSN1009-1963
卷号13期号:12页码:2109-2114
摘要The thermal conductivity of GaAs/AlAs superlattices limited by the three-phonon Umklapp process and boundary scattering has been studied theoretically based on the model of lattice dynamics with force constant matrix. It was found that the Umklapp relaxation rate approximates BTw(2)/n with a fitting parameter B. The thermal conductivity increases with the increase of temperature at low temperatures, and would show a peak behaviour at about 60K before falling off at high temperatures. In addition, the thermal conductivity increases with the increase of period thickness of the superlattices.
部门归属Xiangtan Univ, Dept Phys, Xiangtan 411105, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Peoples R China
关键词Quantum-well Thermoelectric Figure Heat-conduction Merit
学科领域Physics
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收录类别SCI
WOS记录号WOS:000225550200023
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13933
专题理论物理所SCI论文
通讯作者Yan, XH , Xiangtan Univ, Dept Phys, Xiangtan 411105, Peoples R China.
推荐引用方式
GB/T 7714
Yang, YR,Yan, XH,Cao, JX,et al. Thermal conductivity of GaAs/AlAs superlattices: The Umklapp process[J]. CHINESE PHYSICS,2004,13(12):2109-2114.
APA Yang, YR.,Yan, XH.,Cao, JX.,Xiao, Y.,Mao, YL.,...&Yan, XH , Xiangtan Univ, Dept Phys, Xiangtan 411105, Peoples R China..(2004).Thermal conductivity of GaAs/AlAs superlattices: The Umklapp process.CHINESE PHYSICS,13(12),2109-2114.
MLA Yang, YR,et al."Thermal conductivity of GaAs/AlAs superlattices: The Umklapp process".CHINESE PHYSICS 13.12(2004):2109-2114.
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