| Acoustic Phonon Thermal Transport through a Nanostructure |
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| 作者姓名： | 李文霞 柳天宇 刘昌龙 |
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| 作者单位： | Department of Applied Physics, Tianjin University, Tianjin 300072 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10547132, and the Young Teacher Foundation of Tianjin University under Grant No 5110117. |
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| 摘 要： | Using the scattering matrix method, we investigate the thermal transport m a nanostructure at low temperarures. It is found that phonon transport exhibits some novel and interesting features： resonant transmission, resonant reflection, and small thermal conductance. A comparison between thermal conductances is performed when stress-free and hard-wall boundary conditions are applied for acoustic modes, respectively. The result indicates that the characteristics of the thermal conductance versus temperature for different types of boundary conditions are qualitatively different.
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| 关 键 词： | 声学声子热传输 纳米结构 散射矩阵法 热电导 |
| 收稿时间： | 2006-06-16 |
| 修稿时间： | 2006-06-16 |
Acoustic Phonon Thermal Transport through a Nanostructure |
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| LI Wen-Xia, LIU Tian-Yu, LIU Chang-Long.Acoustic Phonon Thermal Transport through a Nanostructure[J].Chinese Physics Letters,2006,23(9):2522-2525. |
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| Authors: | LI Wen-Xia LIU Tian-Yu LIU Chang-Long |
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| Institution: | Department of Applied Physics, Tianjin University, Tianjin 300072 |
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