Wave-vector filtering effect of the electric-magnetic barrier in HgTe quantum wells
文献类型：期刊论文
| 作者 | Zou, YL ; Song, JT |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:3 |
| 关键词 | magnetic barrier topological insulator helical states HgTe quantum well |
| ISSN号 | 1674-1056 |
| 通讯作者 | Song, JT (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China. |
| 中文摘要 | Because of the helicity of electrons in HgTe quantum wells (QWs) with inverted band structures, the electrons cannot be confined by electric barriers since electrons can tunnel the barriers perfectly without backscattering in the HgTe QWs. This behavior is similar to Dirac electrons in graphene. In this paper, we propose a scheme to confine carriers in HgTe QWs using an electric-magnetic barrier. We calculate the transmission of carriers in 2-dimensional HgTe QWs and find that the wave-vector filtering effect of local magnetic fields can confine the carriers. The confining effect will have a potential application in nanodevices based on HgTe QWs. |
| 资助信息 | National Natural Science Foundation of China [10821403, 11047131]; National Basic Research Program of China [2009CB929100]; Research Fund for the Doctoral Program of Higher Education of China [20101303120005] |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57659]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zou, YL,Song, JT. Wave-vector filtering effect of the electric-magnetic barrier in HgTe quantum wells[J]. CHINESE PHYSICS B,2013,22(3). |
| APA | Zou, YL,&Song, JT.(2013).Wave-vector filtering effect of the electric-magnetic barrier in HgTe quantum wells.CHINESE PHYSICS B,22(3). |
| MLA | Zou, YL,et al."Wave-vector filtering effect of the electric-magnetic barrier in HgTe quantum wells".CHINESE PHYSICS B 22.3(2013). |
入库方式： OAI收割
来源：物理研究所
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