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Anomalous circular photogalvanic effect of the spin-polarized two-dimensional electron gas in Mg0.2Zn0.8O/ZnO heterostructures at room temperature

Duan, J. X.; Tang, N.; Ye, J. D.; Mei, F. H.; Teo, K. L.; Chen, Y. H.; Ge, W. K.; Shen, B.


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 Mg ₀.₂ Zn 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...[Show more]

CollectionsANU Research Publications
Date published: 2013-05-13
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4805079


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