Electron transport in a HgTe quantum spin Hall bar with periodic electric modulations
Abstract
We theoretically investigate the electron transport through a quantum spin Hall bar in the presence of periodic potential modulations. We find that the edge states show different behaviors for the periodic electric potential modulation in the proposed structures. The backscattering process can be controlled by tuning the electric potential modulation.
- Publication:
-
Solid State Communications
- Pub Date:
- May 2013
- DOI:
- 10.1016/j.ssc.2013.02.023
- Bibcode:
- 2013SSCom.161...34L