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arXiv 0704.0830cond-mat.mes-hall
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非阿贝尔Aharonov-Bohm效应引起的自旋积累

Spin accumulation from the non-Abelian Aharonov-Bohm effect

Qin Liu, Tianxing Ma, Shou-Cheng Zhang

摘要:

最近的研究表明,$[110]$量子阱中的Dresselhaus型自旋轨道耦合(SOC)可以通过非阿贝尔规范变换在数学上消除。在存在额外的均匀磁场的情况下,这种非阿贝尔规范通量导致在样品的边缘处的自旋累积,其中边缘之间的自旋累积的相对符号可以通过Dresselhaus SOC常数的符号来调谐。我们的预测可以测试克尔测量可用的实验灵敏度。

英文摘要:

Recently, it has been shown that the spin-orbit coupling (SOC) of the Dresselhaus type in $[110]$ quantum wells can be mathematically removed by a non-Abelian gauge transformation. In the presence of an additional uniform magnetic field, such a non-Abelian gauge flux leads to a spin accumulation at the edges of the sample, where the relative sign of the spin accumulation between the edges can be tuned by the sign of the Dresselhaus SOC constant. Our prediction can be tested by Kerr measurements within the available experimental sensitivities.

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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