Momentum and spin filtering of electrons on the surface of a topological insulator |
| |
| Authors: | Fang Cheng |
| |
| Institution: | 1. Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China;2. Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China |
| |
| Abstract: | We study theoretically electron tunneling through planar magnetic barrier arrays on the surface of a three-dimensional topological insulator. Interestingly, the transmission displays a collimation behavior at some specific incident angles. This feature provides us a new way to construct a momentum and spin filter in topological insulators. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
