Anomalous photogalvanic effect of circularly polarized light incident on the two-dimensional electron gas in AlxGa1-xN/GaN heterostructures at room temperature
Anomalous photogalvanic effect of circularly polarized light incident on the two-dimensional electron gas in AlxGa1-xN/GaN heterostructures at room temperature
复制标题
室温下圆偏振光入射到 AlxGa1-xN/GaN 异质结构二维电子气上的反常光电效应
DOI：
10.1103/physrevlett.101.147402
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发表时间：
2008-10-03
影响因子：
8.6
通讯作者：
Wang, Z. G.
中科院分区：
文献类型：
--
作者：
He, X. W.;Shen, B.;Wang, Z. G.
室温下，在圆偏振光垂直入射下，在Al_（0.25）Ga_（0.75）N/GaN异质结二维电子气中观察到了涡旋分布的电荷电流.我们认为，这种反常电荷流是由径向自旋流通过自旋霍尔效应的倒易产生的。这为在宏观尺度下研究自旋互逆霍尔效应和自旋电流提供了一条新的途径。
Under normal incidence of circularly polarized light at room temperature, a charge current with swirly distribution has been observed in the two-dimensional electron gas in Al0.25Ga0.75N/GaN heterostructures. We believe that this anomalous charge current is produced by a radial spin current via the reciprocal spin Hall effect. It suggests a new way to research the reciprocal spin Hall effect and spin current on the macroscopic scale and at room temperature.