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arXiv 1302.6772cond-mat.mes-hall
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自旋滤波对Rashba-Dresselhaus-Aharonov-Bohm干涉仪漏电流的鲁棒性

Robustness of spin filtering against current leakage in a Rashba-Dresselhaus-Aharonov-Bohm interferometer

Shlomi Matityahu, Amnon Aharony, Ora Entin-Wohlman, Shingo Katsumoto

摘要:

在早期的一篇论文[Phys. Rev. B 84,035323(2011)]中,我们提出了一种基于类金刚石干涉仪的自旋滤波器,该干涉仪同时受到Aharonov-Bohm通量和(Rashba和Dresselhaus)自旋轨道相互作用的影响。在这里,我们表明,出射电子自旋的全极化保持不变,即使当一个允许泄漏的电子从分支的干涉仪。一旦调谐其中一个分支上的栅极电压以实现它们之间的有效对称,则可以通过确定自旋-轨道相互作用强度和Aharonov-Bohm通量的电场和/或磁场来控制该极化。

英文摘要:

In an earlier paper [Phys. Rev. B 84, 035323 (2011)], we proposed a spin filter which was based on a diamond-like interferometer, subject to both an Aharonov-Bohm flux and (Rashba and Dresselhaus) spin-orbit interactions. Here we show that the full polarization of the outgoing electron spins remains the same even when one allows leakage of electrons from the branches of the interferometer. Once the gate voltage on one of the branches is tuned to achieve an effective symmetry between them, this polarization can be controlled by the electric and/or magnetic fields which determine the spin-orbit interaction strength and the Aharonov-Bohm flux.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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