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

doi:10.1088/1674-1056/26/11/117203

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.

Keywords: quantum ring chain Dresselhaus spin-orbit coupling spin transport

Received: 04 May 2017
Revised: 13 July 2017
Accepted manuscript online:

PACS:	72.25.Dc	(Spin polarized transport in semiconductors)
	03.65.Nk	(Scattering theory)
	71.70.Ej	(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)

Fund: 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).

Corresponding Authors: Jian-Jun Liu
E-mail: liujj@mail.hebtu.edu.cn

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Han-Zhao Tang(唐翰昭), Xiao-Teng Yao(要晓腾), Jian-Jun Liu(刘建军) Spin transport in a chain of polygonal quantum rings with Dresselhaus spin-orbit coupling 2017 Chin. Phys. B 26 117203

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

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