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|Title:||Anomalous circular photogalvanic effect of the spin-polarized two-dimensional electron gas in Mg0.2Zn0.8O/ZnO heterostructures at room temperature|
|Citation:||Duan, J.X., Tang, N., Ye, J.D., Mei, F.H., Teo, K.L., Chen, Y.H., Ge, W.K., Shen, B. (2013-05-13). Anomalous circular photogalvanic effect of the spin-polarized two-dimensional electron gas in Mg0.2Zn0.8O/ZnO heterostructures at room temperature. Applied Physics Letters 102 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4805079|
|Abstract:||A spin-related photocurrent with swirly distribution and anomalous dependence of the total spin-related photocurrent on the incident angle were observed on spin-polarized two-dimensional gas in a Mg0.2Zn 0.8O/ZnO heterostructure under illumination of circular polarized light at room temperature. The ferromagnetic two-dimensional Rashba model was adopted to interpret the results. It is demonstrated that a radial spin current induced by the gradient of the spin-polarized electron density is the origin of the anomalousness. This spin current only exists in spin polarized systems. © 2013 AIP Publishing LLC.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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