| Phonon Transmission and Thermal Conductance in Fibonacci Wire at Low Temperature |
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| 作者姓名： | 张永梅 徐晨华 熊诗杰 |
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| 作者单位： | [1]Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 [2]National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 60276005 and 10474033, and the Youth Foundation of College of Science, Nanjing University of Aeronautics and Astronautics. |
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| 摘 要： |
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| 关 键 词： | 声子传输 热传导 导线 低温 |
| 收稿时间： | 2006-11-3 |
| 修稿时间： | 2006-11-03 |
Phonon Transmission and Thermal Conductance in Fibonacci Wire at Low Temperature |
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| ZHANG Yong-Mei,XU Chen-Hua,XIONG Shi-Jie.Phonon Transmission and Thermal Conductance in Fibonacci Wire at Low Temperature[J].Chinese Physics Letters,2007,24(4):1017-1020. |
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| Authors: | ZHANG Yong-Mei XU Chen-Hua XIONG Shi-Jie |
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| Institution: | 1.Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016; 2.National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 |
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| Abstract: | We investigate the phonon transmission and thermal conductance in a general Fibonacci quasicrystal by the model of lattice dynamics and the technique of transfer matrix. It is found that quasiperiodic distribution of masses may greatly destroy the phonon transport at both low and high frequencies and thus may affect the thermal conductance. The thermal conductance increases with temperature at low temperatures and displays saturation with further increase of the temperature. Such saturation behaviour is preserved even when the mass ratio of atoms in the Fibonacci chain is changed. |
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| Keywords: | 66 70 +f 63 22 +m 68 65 La |
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