Effect of transverse electric field on helical edge states in a quantum spin-hall system
文献类型：期刊论文
| 作者 | Liu, Genhua1; Zhou, Guanghui2,3; Chen, Yong-Hai4 |
| 刊名 | Applied physics letters
 |
| 出版日期 | 2011-11-28 |
| 卷号 | 99期号:22页码:3 |
| 关键词 | Cadmium compounds Ii-vi semiconductors Mercury compounds Quantum hall effect Semiconductor quantum wells Spin hall effect Wide band gap semiconductors |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/1.3664776 |
| 通讯作者 | Liu, genhua(liugenhua@semi.ac.cn) |
| 英文摘要 | We study the electronic band, density distribution, and transport property for a hgte/cdte quantum well hall bar with finite-width in the presence of a transverse electric field. it is found that the electric field can lead to a topological phase transition which controls edge state properties. interestingly, the chirality of edge states can be modified under electric field, and a sufficient high field can remove the spectrum gap induced by the coupling between the edge states in a narrow hall bar, restoring quantum spin-hall effect. these findings may provide a fundamental understanding of topological edge states. (c) 2011 american institute of physics. [doi:10.1063/1.3664776] |
| WOS关键词 | WELLS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000298244500043 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428181 |
| 专题 | 半导体研究所 |
| 通讯作者 | Liu, Genhua |
| 作者单位 | 1.Cent S Univ Forestry & Technol, Coll Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China 2.Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China 3.Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Manipulat, Minist Educ, Changsha 410081, Hunan, Peoples R China 4.Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Genhua,Zhou, Guanghui,Chen, Yong-Hai. Effect of transverse electric field on helical edge states in a quantum spin-hall system[J]. Applied physics letters,2011,99(22):3. |
| APA | Liu, Genhua,Zhou, Guanghui,&Chen, Yong-Hai.(2011).Effect of transverse electric field on helical edge states in a quantum spin-hall system.Applied physics letters,99(22),3. |
| MLA | Liu, Genhua,et al."Effect of transverse electric field on helical edge states in a quantum spin-hall system".Applied physics letters 99.22(2011):3. |
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来源：半导体研究所
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