| Heat Conductivity of One-Dimensional Carbon Chain in an External Potential |
| |
| 引用本文： | 葛勇 董锦明. Heat Conductivity of One-Dimensional Carbon Chain in an External Potential[J]. 中国物理快报, 2007, 24(9): 2609-2612 |
| |
| 作者姓名： | 葛勇 董锦明 |
| |
| 作者单位： | Group of Computational Condensed Matter Physics, National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 |
| |
| 基金项目： | Supported by the Natural Science Foundation of China under Grant Nos 10474035, and 90503012, and the National Basic Research Programme of China under Grant No 2004CB619004. Ge thanks WU Gang and LU0 Chuanfu for useful discussions and suggestions. |
| |
| 摘 要： | ![]()
The heat transport m a one-dimensional （ID） carbon nanowire （CNW） lying in an external potential with different amplitudes and periods is studied by the non-equilibrium molecular dynamics method. It is found that the thermal conductivity of CNW is always anomalous, increasing with the CNW length and obeying the power law k- N, in which a decreases with the increasing external potential amplitude. The thermal conductivity could be enhanced by the external potential with rather larger amplitudes, which means that an applied external potential could be an efficient tool to improve the heat conductivity of a real 1D material In addition, the effect of different periods of the external potential is studied, finding the external potential with an incommensurate period leads to the smaller a value.
|
| 关 键 词： | 热传导性 碳链 外部电势 物理学 |
| 收稿时间： | 2007-04-10 |
| 修稿时间： | 2007-04-10 |
Heat Conductivity of One-Dimensional Carbon Chain in an External Potential |
| |
| GE Yong,DONG Jin-Ming. Heat Conductivity of One-Dimensional Carbon Chain in an External Potential[J]. Chinese Physics Letters, 2007, 24(9): 2609-2612 |
| |
| Authors: | GE Yong DONG Jin-Ming |
| |
| Affiliation: | Group of Computational Condensed Matter Physics, National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 |
| |
| Abstract: | ![]()
|
| |
| Keywords: | 44.10.+i 05.60.Cd 65.80.+n |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
|
点击此处可从《中国物理快报》下载免费的PDF全文 |
