Yu Jinling, Zeng Xiaolin, Zhang Liguo, Yin Chunming, Chen Yonghai, Liu Yu, Cheng Shuying, Lai Yunfeng, He Ke, Xue Qikun
Opt Express. 2018 Feb 19;26(4):4832-4841. doi: 10.1364/OE.26.004832.
The inverse spin Hall effect (ISHE) induced by the normal incidence of linearly-polarized infrared radiation has been observed in the topological insulator BiSe. A model has been proposed to explain the phenomenon, and the spin transverse force has been determined by the model fitting. The anomalous linear photogalvanic effect (ALPGE) is also observed, and the photoinduced momentum anisotropy is extracted. Furthermore, the ISHE and ALPGE are investigated at different temperatures between 77 and 300 K, and the temperature dependence of the spin transverse force and photoinduced momentum anisotropy are obtained. This study suggests a new way to investigate the inverse spin Hall effect via linearly polarized light even at room temperature.
在线性偏振红外辐射垂直入射时所诱导的逆自旋霍尔效应（ISHE）已在拓扑绝缘体BiSe中被观测到。已提出一个模型来解释该现象，并且通过模型拟合确定了自旋横向力。还观测到了反常线性光电流效应（ALPGE），并提取了光致动量各向异性。此外，在77K至300K的不同温度下对ISHE和ALPGE进行了研究，得到了自旋横向力和光致动量各向异性的温度依赖性。这项研究表明了一种即使在室温下也能通过线偏振光来研究逆自旋霍尔效应的新方法。
