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

• 来源期刊: 中国物理B（英文版）
• 关键词: Rashba spin-orbit interaction quantum waveguide Aharonov-Bohm ring spin flip spin device
• 年，卷（期）: 2018,（3）
• 页码范围: 397-400
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/3/037201

摘要

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-inverterwith a high stability.