中国物理B ›› 2016, Vol. 25 ›› Issue (1): 17103-017103.doi: 10.1088/1674-1056/25/1/017103

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Spin texturing in quantum wires with Rashba and Dresselhaus spin-orbit interactions and in-plane magnetic field

B Gisi, S Sakiroglu, İ Sokmen   

  1. 1. Physics Department, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir 35390, Turkey;
    2. Physics Department, Faculty of Science, Dokuz Eylül University, İzmir 35390, Turkey
  • 收稿日期:2015-07-21 修回日期:2015-08-25 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: B Gisi E-mail:bircangisi@gmail.com

Spin texturing in quantum wires with Rashba and Dresselhaus spin-orbit interactions and in-plane magnetic field

B Gisi1, S Sakiroglu2, İ Sokmen2   

  1. 1. Physics Department, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, İzmir 35390, Turkey;
    2. Physics Department, Faculty of Science, Dokuz Eylül University, İzmir 35390, Turkey
  • Received:2015-07-21 Revised:2015-08-25 Online:2016-01-05 Published:2016-01-05
  • Contact: B Gisi E-mail:bircangisi@gmail.com

摘要: In this work, we investigate the effects of interplay of spin-orbit interaction and in-plane magnetic fields on the electronic structure and spin texturing of parabolically confined quantum wire. Numerical results reveal that the competing effects between Rashba and Dresselhaus spin-orbit interactions and the external magnetic field lead to a complicated energy spectrum. We find that the spin texturing owing to the coupling between subbands can be modified by the strength of spin-orbit couplings as well as the magnitude and the orientation angle of the external magnetic field.

关键词: spin-orbit coupling, quantum wire, spin texture

Abstract: In this work, we investigate the effects of interplay of spin-orbit interaction and in-plane magnetic fields on the electronic structure and spin texturing of parabolically confined quantum wire. Numerical results reveal that the competing effects between Rashba and Dresselhaus spin-orbit interactions and the external magnetic field lead to a complicated energy spectrum. We find that the spin texturing owing to the coupling between subbands can be modified by the strength of spin-orbit couplings as well as the magnitude and the orientation angle of the external magnetic field.

Key words: spin-orbit coupling, quantum wire, spin texture

中图分类号:  (Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)

  • 71.70.Ej
75.70.Tj (Spin-orbit effects) 73.21.Hb (Quantum wires) 85.75.-d (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)