Spin current through double quantum dots with spin- and time-dependent interdot coupling

Spin current through double quantum dots with spin- and time-dependent interdot coupling
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通过具有自旋和时间依赖性点间耦合的双量子点的自旋电流

DOI:
10.1063/1.3554830
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发表时间:
2011-03
影响因子:
3.2
通讯作者:
Wang, Fangwei
Wang, Fangwei
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Wang, Haixia;Yin, Wen;Wang, Fangwei

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从理论上分析了电子通过双量子点的输运特性,在双量子点之间存在时间振荡和自旋极化相关隧穿。利用Keldysh非平衡态和绿色函数,得到了时均电流(自旋电流和电荷电流)及其微分的一般公式,由这些公式导出的输运性质可以用自旋相关的共振隧穿图像定性地解释.
We analyze theoretically the characteristics of electron transport through double quantum dots between which time oscillating and spin-polarization-dependent tunneling occurs. General formulas for the time-averaged current (spin current and charge current) and its differential are obtained by Keldysh nonequilibrium, Green’s function, and the transport properties derived from those formulas, can be qualitatively explained by spin-dependent resonant tunneling images.
双量子点作为自旋偏压探测器
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