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Photogalvanic currents in quantum well structures induced by infrared radiation

Ganichev, Sergey



Abstract

A circular photogalvanic effect and a magnetic field induced circular photogalvanic effects caused by absorption of far infrared radiation have been observed in quantum well (QW) structures. Applying circularly polarized infrared radiation a monopolar spin polarization has been achieved. The spin polarization results in a directed motion of free carriers in the plane of a quantum well. The ...

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