Open AccessInverse spin Hall effect induced by linearly polarized light in the topological insulator Bi2Se3
Author(s) -
Jinling Yu,
Xiaolin Zeng,
Liguo Zhang,
Chunming Yin,
Yonghai Chen,
Yu Liu,
Shuying Cheng,
Yunfeng Lai,
Ke He,
QiKun Xue
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.004832
Subject(s) - topological insulator , spin hall effect , condensed matter physics , anisotropy , physics , inverse , transverse plane , spin (aerodynamics) , optics , quantum mechanics , spin polarization , electron , geometry , mathematics , structural engineering , engineering , thermodynamics
The inverse spin Hall effect (ISHE) induced by the normal incidence of linearly-polarized infrared radiation has been observed in the topological insulator Bi 2 Se 3 . 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.