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arXiv 1309.0366cond-mat.mes-hall
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局域加热驱动自旋电流generator的建议

Proposal for a local heating driven spin current generator

Sun-Yong Hwang, Jong Soo Lim, Rosa Lopez, Minchul Lee, David Sanchez

摘要:

我们提出了一种两端自旋轨道干涉仪,在它的一个臂上插入一个热分子来产生纯自旋流。局部加热是通过将分子的振动模式耦合到第三个(声子)库来实现的。我们表明,这种自旋量热效应是由于自旋相关的波干涉和非弹性散射的综合影响。值得注意的是,该装置将热流转化为自旋极化电流,即使没有施加任何电压或温度差的电子终端。

英文摘要:

We propose a two-terminal spin-orbit interferometer with a hot molecule inserted in one of its arms to generate pure spin currents. Local heating is achieved by coupling the vibrational modes of the molecule to a third (phononic) reservoir. We show that this spin calorimetric effect is due to the combined influence of spin-dependent wave interference and inelastic scattering. Remarkably, the device converts heat flow into spin-polarized current even without applying any voltage or temperature difference to the electronic terminals.

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