Spin flip in single quantum ring with Rashba spin-orbit interation

doi:10.1088/1674-1056/27/3/037201

Abstract We theoretically investigate spin transport in the elliptical ring and the circular ring with Rashba spin-orbit interaction. It is shown that when Rashba spin-orbit interaction is relatively weak, a single circular ring can not realize spin flip, however an elliptical ring may work as a spin-inverter at this time, and the influence of the defect of the geometry is not obvious. Howerver if a giant Rashba spin-orbit interaction strength has been obtained, a circular ring can work as a spin-inverter with a high stability.

Keywords: Rashba spin-orbit interaction quantum waveguide Aharonov-Bohm ring spin flip spin device

Received: 14 November 2017
Revised: 26 December 2017
Accepted manuscript online:

PACS:	72.25.Dc	(Spin polarized transport in semiconductors)
	73.22.Dj	(Single particle states)
	73.23.-b	(Electronic transport in mesoscopic systems)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11504016).

Corresponding Authors: Duan-Yang Liu
E-mail: liudy@mail.buct.edu.cn

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Duan-Yang Liu(刘端阳), Jian-Bai Xia(夏建白) Spin flip in single quantum ring with Rashba spin-orbit interation 2018 Chin. Phys. B 27 037201

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