| 曲率效应对金属碳纳米管局域化长度的影响 |
| |
| 引用本文： | 张勇,韩梅,黄成平. 曲率效应对金属碳纳米管局域化长度的影响[J]. 四川大学学报(自然科学版), 2009, 46(6) |
| |
| 作者姓名： | 张勇 韩梅 黄成平 |
| |
| 作者单位： | 南京工业大学应用物理系,南京工业大学应用物理系,南京工业大学应用物理系 |
| |
| 摘 要： | 基于pi轨道紧束缚模型，并考虑曲率效应的影响，解析地推导了金属（即扶手椅型）碳纳米管的局域化长度。发现，考虑曲率效应后，扶手椅型碳纳米管的局域化长度变长；还发现，曲率效应对扶手椅型碳纳米管局域化长度的影响随碳纳米管的半径的增加而迅速减小。
|
| 关 键 词： | 碳纳米管；局域化长度；曲率效应 |
Curvature effect on localization length in metallic carbon nanotubes |
| |
| Zhang Yong,HAN Mei and HUANG Cheng-ping. Curvature effect on localization length in metallic carbon nanotubes[J]. Journal of Sichuan University (Natural Science Edition), 2009, 46(6) |
| |
| Authors: | Zhang Yong HAN Mei HUANG Cheng-ping |
| |
| Affiliation: | Department of Applied Physcics, Nanjing University of Technology,Department of Applied Physics, Nanjing University of Technology,Department of Applied Physics, Nanjing University of Technology |
| |
| Abstract: | Based on pi orbital tight-binding model and including the curvature effect, the localization length of the metallic carbon nanotubes, i.e. the armchair carbon nanotubes, has been derived analytically. It is found that, including the curvature effect, the localization length of armchair nanotubes becomes longer. It is also found that the curvature effect on localization length decreases with increasing radius of carbon nanotube. |
| |
| Keywords: | carbon nanotubes localization length curvature effect |
|
| 点击此处可从《四川大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《四川大学学报(自然科学版)》下载全文 |
