Mesoscopic spin Hall effect

Mesoscopic spin Hall effect
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DOI:
10.1103/physrevlett.98.196601
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发表时间:
2007-05-11
影响因子:
8.6
通讯作者:
Jacquod, Ph.
Jacquod, Ph.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Bardarson, J. H.;Adagideli, I.;Jacquod, Ph.

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We investigate the spin Hall effect in ballistic chaotic quantum dots with spin-orbit coupling. We show that a longitudinal charge current can generate a pure transverse spin current. While this transverse spin current is generically nonzero for a fixed sample, we show that when the spin-orbit coupling time is short compared to the mean dwell time inside the dot, it fluctuates universally from sample to sample or upon variation of the chemical potential with a vanishing average.