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Terahertz radiation induced spin photocurrents in non-magnetic low dimensional structures

Ganichev, Sergey ; Prettl, Wilhelm


Spin photocurrents generated by homogeneous excitation with terahertz radiation in low dimensional structures are reviewed. Three microscopic mechanisms are responsible for the occurrence of an electric current linked to a uniform spin polarization in a quantum well, the circular photogalvanic effect, the spin-galvanic effect and the magneto-gyrotropic effect. These phenomena provide ...


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