Can electric field induced energy gaps in metallic carbon nanotubes?
文献类型：期刊论文
| 作者 | Zhou, X; Chen, H; Zhong-can, OY; Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2001 |
| 卷号 | 13期号:27页码:L635-L640 |
| 关键词 | Quantum Wires Manipulation Transport Junctions |
| ISSN号 | 0953-8984 |
| 英文摘要 | The low-energy electronic structure of a metallic single-walled carbon nanotube (SWNT) in an external electric field perpendicular to the tube axis is investigated. Based on tight-binding approximation, a field-induced energy gap is found in all (n, n) SWNTs, and the gap shows strong dependence on the electric field and the size of the tubes. We numerically find a universal scaling that the gap is a function of the electric field and the radius of SWNTs, and the results are testified by the second-order perturbation theory in weak field limit. Our calculation shows the field required to induce a 0.1 eV gap in metallic SWNTs can be easily reached under the current experimental conditions. It indicates the possibility of applying nanotubes to electric signal-controlled nanoscale switching: devices. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000170075700004 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12708]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhou, X,Chen, H,Zhong-can, OY,et al. Can electric field induced energy gaps in metallic carbon nanotubes?[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2001,13(27):L635-L640. |
| APA | Zhou, X,Chen, H,Zhong-can, OY,&Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2001).Can electric field induced energy gaps in metallic carbon nanotubes?.JOURNAL OF PHYSICS-CONDENSED MATTER,13(27),L635-L640. |
| MLA | Zhou, X,et al."Can electric field induced energy gaps in metallic carbon nanotubes?".JOURNAL OF PHYSICS-CONDENSED MATTER 13.27(2001):L635-L640. |
入库方式： OAI收割
来源：理论物理研究所
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