| Phonon Transport and Thermal Conductivity in an Acoustic Filter |
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| 引用本文： | 卢建夺 邵亮 侯阳来 易林. Phonon Transport and Thermal Conductivity in an Acoustic Filter[J]. 中国物理快报, 2007, 24(3): 793-796 |
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| 作者姓名： | 卢建夺 邵亮 侯阳来 易林 |
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| 作者单位： | [1]Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081 [2]Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| 基金项目： | Supported by the Scientific Research fund of Hubei Provincial Education Department under Grant No 080043. |
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| 摘 要： |
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| 关 键 词： | 声子传输 热 电导率 声音过滤器 |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006-09-18 |
Phonon Transport and Thermal Conductivity in an Acoustic Filter |
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| LU Jian-Duo,SHAO Liang,HOU Yang-Lai,YI Lin. Phonon Transport and Thermal Conductivity in an Acoustic Filter[J]. Chinese Physics Letters, 2007, 24(3): 793-796 |
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| Authors: | LU Jian-Duo SHAO Liang HOU Yang-Lai YI Lin |
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| Affiliation: | 1 Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081 ; 2Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | We investigate the phonon ballistic transmission and the thermal conductivity in a dielectric quantum structure. It is found that these observable quantities sensitively depend on geometric parameters, and are of quantum character. The total transmission coetfficient as a function of the reduced waveguide-length exhibits periodical behaviour and the reduced thermal conductance decreases below the ideal universal value for the low temperature. Our results show that one can control the thermal conductivity of the structure and make all kinds of acoustic filters to match practical requirements in devices by adjusting the geometric parameters. |
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| Keywords: | 66.70.+f 63.22.+m 66.35.+a |
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