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arXiv 1503.04552cond-mat.mes-hall
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旋转二维电子气中的Barnett与Landau能级

The Barnett vs. Landau levels in the rotating two-dimensional electron gas

Dashdeleg Baasanjav, Stefan Bretzel, Gerrit E. W. Bauer

摘要:

我们研究了二维电子气中由机械旋转引起的磁化,称为巴尼特效应。旋转系统的能量本征值(Barnett能级)是非简并的,因此在存在磁场的情况下不同于朗道能级。巴尼特规范场与电子自旋和轨道自由度的耦合所引起的磁响应是顺磁性的。令人惊讶的是,旋转不会引起任何电荷重新分布,即在二维电子气中,离心力被量子力学抑制。

英文摘要:

We investigate magnetization induced by mechanical rotation, known as the Barnett effect, in the two-dimensional electron gas. The energy eigenvalues of the rotating system (Barnett levels) are non-degenerate, thereby differ from Landau levels in the presence of a magnetic field. The magnetic response caused by the coupling of the Barnett gauge field to both the electron spin and orbital degree of freedom is found to be paramagnetic. Surprisingly, rotation does not cause any charge redistribution, i.e. in the two-dimensional electron gas centrifugal forces are quantum mechanically suppressed.

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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