中国物理B ›› 2017, Vol. 26 ›› Issue (11): 117203-117203.doi: 10.1088/1674-1056/26/11/117203

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

Spin transport in a chain of polygonal quantum rings with Dresselhaus spin-orbit coupling

Han-Zhao Tang(唐翰昭), Xiao-Teng Yao(要晓腾), Jian-Jun Liu(刘建军)   

  1. 1. Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2. Physics Department and Hebei Advanced Thin Film Laboratory, Hebei Normal University, Shijiazhuang 050024, China;
    3. Physics Department, Shijiazhuang University, Shijiazhuang 050035, China
  • 收稿日期:2017-05-04 修回日期:2017-07-13 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61176089 and 11504083) and the Foundation of Shijiazhuang University, China (Grant No. XJPT002).

Spin transport in a chain of polygonal quantum rings with Dresselhaus spin-orbit coupling

Han-Zhao Tang(唐翰昭)1, Xiao-Teng Yao(要晓腾)2, Jian-Jun Liu(刘建军)2,3   

  1. 1. Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2. Physics Department and Hebei Advanced Thin Film Laboratory, Hebei Normal University, Shijiazhuang 050024, China;
    3. Physics Department, Shijiazhuang University, Shijiazhuang 050035, China
  • Received:2017-05-04 Revised:2017-07-13 Online:2017-11-05 Published:2017-11-05
  • Contact: Jian-Jun Liu E-mail:liujj@mail.hebtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61176089 and 11504083) and the Foundation of Shijiazhuang University, China (Grant No. XJPT002).

摘要: Using a transfer matrix method, we investigate spin transport through a chain of polygonal rings with Dresselhaus spin-orbit coupling (DSOC). The spin conductance is dependent on the number of sides in the polygons. When DSOC is considered in a chain which also has Rashba spin-orbit coupling (RSOC) of the same magnitude, the total conductance is the same as that for the same chain with no SOC. However, when the two types of SOC have different values, there results a unique anisotropic conductance.

关键词: quantum ring chain, Dresselhaus spin-orbit coupling, spin transport

Abstract: Using a transfer matrix method, we investigate spin transport through a chain of polygonal rings with Dresselhaus spin-orbit coupling (DSOC). The spin conductance is dependent on the number of sides in the polygons. When DSOC is considered in a chain which also has Rashba spin-orbit coupling (RSOC) of the same magnitude, the total conductance is the same as that for the same chain with no SOC. However, when the two types of SOC have different values, there results a unique anisotropic conductance.

Key words: quantum ring chain, Dresselhaus spin-orbit coupling, spin transport

中图分类号:  (Spin polarized transport in semiconductors)

  • 72.25.Dc
03.65.Nk (Scattering theory) 71.70.Ej (Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)