| Dependence of in—tube doping on the radius and helicity of single—wall carbon nanotubes |
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| 引用本文： | 刘红,董锦明,钱湄杶,万贤纲.Dependence of in—tube doping on the radius and helicity of single—wall carbon nanotubes[J].中国物理 B,2003,12(5):542-547. |
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| 作者姓名： | 刘红 董锦明 钱湄杶 万贤纲 |
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| 作者单位： | (1)Department of Physics, Nanjing University, Nanjing 210093, China; Department of Physics, Nanjing Normal University, Nanjing 210097, China; (2)Group of Computational Condensed Matter Physics, State Key Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China |
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| 摘 要： | Using the Lennard－Jones interaction potential between the impurity atom and carbon atom, we have studied the dependence of in-tube impurity doping on the radius of a single-wall carbon nanotube (SWNT), as well as its helicity. The obtained results show that the radius of the most stably doped SWNT is different for different kinds of impurity atoms. This is useful for producing the required doped SWNT. In addition, it is found that the helicity of tube has a strong effect on the potential energy of the atoms doped in the SWNT.
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| 关 键 词： | single-wall carbon nanotube impurity atom Lennard－Jones potential |
| 收稿时间： | 2002-07-20 |
Dependence of in-tube doping on the radius and helicity of single-wall carbon nanotubes |
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| Liu Hong,Dong Jin-Ming,Qian Mei-Chun and Wan Xian-Gang.Dependence of in-tube doping on the radius and helicity of single-wall carbon nanotubes[J].Chinese Physics B,2003,12(5):542-547. |
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| Authors: | Liu Hong Dong Jin-Ming Qian Mei-Chun and Wan Xian-Gang |
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| Affiliation: | Department of Physics, Nanjing University, Nanjing 210093, China; Department of Physics, Nanjing Normal University, Nanjing 210097, China; Group of Computational Condensed Matter Physics, State Key Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China |
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| Abstract: | Using the Lennard－Jones interaction potential between the impurity atom and carbon atom, we have studied the dependence of in-tube impurity doping on the radius of a single-wall carbon nanotube (SWNT), as well as its helicity. The obtained results show that the radius of the most stably doped SWNT is different for different kinds of impurity atoms. This is useful for producing the required doped SWNT. In addition, it is found that the helicity of tube has a strong effect on the potential energy of the atoms doped in the SWNT. |
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| Keywords: | single-wall carbon nanotube impurity atom Lennard－Jones potential |
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