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26 April 2024

» arxiv » 1009.3177

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Spin polarized electric currents in semiconductor heterostructures induced by microwave radiation
C. Drexler ; V.V. Bel'kov ; B. Ashkinadze ; P. Olbrich ; C. Zoth ; V. Lechner ; Ya.V. Terent'ev ; D.R. Yakovlev ; G. Karczewski ; T. Wojtowicz ; D. Schuh ; W. Wegscheider ; S.D. Ganichev ;
Date:	16 Sep 2010
Abstract:	We report on microwave (mw) radiation induced electric currents in (Cd,Mn)Te/(Cd,Mg)Te and InAs/(In,Ga)As quantum wells subjected to an external in-plane magnetic field. The current generation is attributed to the spin-dependent energy relaxation of electrons heated by mw radiation. The relaxation produces equal and oppositely directed electron flows in the spin-up and spin-down subbands yielding a pure spin current. The Zeeman splitting of the subbands in the magnetic field leads to the conversion of the spin flow into a spin-polarized electric current.
Source:	arXiv, 1009.3177
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