Ganichev, Sergey and Belkov, Vassilij and Tarasenko, Sergey and Danilov, Sergey and Giglberger, Stephan and Hoffmann, Christoph and Ivchenko, Eougenious and Weiss, Dieter and Gerl, Christian and Schuh, Dieter and Wegscheider, Werner and Prettl, Wilhelm (2007) Scattering Induced Spin Separation at Zero Bias. AIP Conference Proceedings 893, pp. 1255-1256.
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We show that in gyrotropic semiconductor structures spin-dependent asymmetry of electron scattering induces a spin separation which, in contrast to the spin Hall effect, does not require an electric current to flow. The effect is observed in GaAs/AlGaAs quantum well structures at free-carrier absorption of terahertz (THz) radiation. Microscopic theory based on asymmetry of photoexcitation and relaxation is developed being in a good agreement with experiment.
|Date:||10 April 2007|
|Institutions:||Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||05 Oct 2007|
|Last Modified:||17 Nov 2009 04:13|