期刊
PHYSICAL REVIEW B
卷 79, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.193303
关键词
semiconductor quantum wires; spin polarised transport; spin-orbit interactions
资金
- Ministerio de Ciencia e Innovacion (Spain) [FIS2008-00781/FIS]
- RFBR [08-02-00118, 09-02-98005]
We show that spin precession in a semiconductor quantum wire, caused by the Rashba and the Dresselhaus interactions (both of arbitrary strengths), can be suppressed by dint of an in-plane magnetic field. Using a condition of the translational invariance in the longitudinal coordinate, we found another type of symmetry, which arises at a particular set of intensity and orientation of the magnetic field and explains this suppression. Based on our findings, we propose a transport experiment to measure the strengths of the Rashba and the Dresselhaus interactions.
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