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Photovoltaic effect generated by spin-orbit interactions
Physical Review B ( IF 3.2 ) Pub Date : 2020-03-30 , DOI: 10.1103/physrevb.101.121303
O. Entin-Wohlman , R. I. Shekhter , M. Jonson , A. Aharony

An AC electric field applied to a junction comprising two spin-orbit coupled weak links connecting a quantum dot to two electronic terminals is proposed to induce a DC current and to generate a voltage drop over the junction if it is a part of an open circuit. This photovoltaic effect requires a junction in which mirror reflection symmetry is broken. Its origin lies in the different ways inelastic processes modify the reflection of electrons from the junction back into the two terminals, which leads to uncompensated DC transport. The effect can be detected by measuring the voltage drop that is built up due to that DC current. This voltage is an even function of the frequency of the AC electric field.

中文翻译:

自旋轨道相互作用产生的光伏效应

提出了施加到包括两个自旋轨道耦合的弱连接的结上的交流电场,该弱连接将量子点连接到两个电子端子,如果它是开路的一部分,则感应直流电流并在结上产生电压降。这种光电效应需要打破镜面反射对称性的结。它的起源在于非弹性过程改变了电子从结返回到两个端子的反射的不同方式,这导致了未补偿的直流传输。可以通过测量由于该DC电流而建立的电压降来检测效果。该电压是交流电场频率的偶函数。
更新日期:2020-03-30
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