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| 单层碳纳米管的磁输运特性 | |
| 引用本文： | 曾晓英,张振华,彭景翠,陈小华. 单层碳纳米管的磁输运特性[J]. 原子与分子物理学报, 2002, 19(1): 27-30 |
| 作者姓名： | 曾晓英 张振华 彭景翠 陈小华 |
| 作者单位： | 1. 长沙交通学院信息与计算科学系,长沙,410076 2. 长沙交通学院信息与计算科学系,长沙,410076;湖南大学应用物理系,长沙,410082 3. 湖南大学应用物理系,长沙,410082 |
| 基金项目： | 国家自然科学基金(批准号:59972031)资助的项目. |
| 摘 要： | 依据磁场中Boltzmann输运方程及单层磁纳米管(SWNTs)的能量色散关系,对单个SWNTs中轴向磁场诱发的低温磁阻进行了数值计算.分析表明:当电子以低能输运时,SWNTs的磁阻有明显的Aharonov-Bohn(A-B)效应,与并SWNTs的能隙相对应. |
| 关 键 词： | 单层磁纳米管 Boltzmann方程 能量色散关系 磁阻 A-B效应 |
| 文章编号： | 1000-0364(2002)01-0027-04 |
| 收稿时间： | 2001-09-24 |
| 修稿时间： | 2001-09-24 |
Properties of magnetic transport in single-walled carbon nanotubes |
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| ZENG Xiao-ying,ZHANG Zhen-hua ,,PENG Jing-cui ,CHENG Xiao-hua. Properties of magnetic transport in single-walled carbon nanotubes[J]. Journal of Atomic and Molecular Physics, 2002, 19(1): 27-30 | |
| Authors: | ZENG Xiao-ying ZHANG Zhen-hua PENG Jing-cui CHENG Xiao-hua |
| Affiliation: | ZENG Xiao-ying,ZHANG Zhen-hua 1,2,PENG Jing-cui 2,CHENG Xiao-hua 2 |
| Abstract: | The Low-temperature magnetoresistance(MR) induced by an axial magnetic-field in individual single-walled carbon nanotubes(SWNTs) was calculated numerically based on the Boltzmann transport equation and energy dispersion relation of individual SWNTs. Analysis shows: when electrons transport with lower energy, MR has obvious Aharonov-Bohm(A-B) effect in individual SWNTs and corresponds to the energy gap of SWNTs. |
| Keywords: | Single-walled carbon nanotubes Boltzmann equation Energy dispersion relation Magnetoresistance A-B effect |
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