Ganichev, Sergey and Ivchenko, Eougenious and Danilov, Sergey and Sollinger, M. and Eroms, Jonathan and Wegscheider, Werner and Weiss, Dieter and Prettl, Wilhelm
Transfer of spin orientation into electric current in quantum wells.
Physica E 13 (2-4), pp. 552-555.
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Other URL: http://www.physik.uni-regensburg.de/forschung/ganichev/reprints/physicaE2002p552cpge.pdf
A monopolar spin polarization has been achieved in quantum well structures applying terahertz circularly polarized radiation. The spin polarization results in a directed motion of free carriers in the plane of a quantum well perpendicularly to the direction of light propagation. Due to spin selection rules the direction of the current is determined by the helicity of the light and can be reversed ...
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