Drexler, Christoph and Belkov, Vassilij and Ashkinadze, B. and Olbrich, Peter and Zoth, Christina and Lechner, Vera and Terent'ev, Ya.V. and Yakovlev, D.R. and Karczewski, G. and Wojtowicz, Tomasz and Schuh, Dieter and Wegscheider, Werner and Ganichev, Sergey (2010) Spin polarized electric currents in semiconductor heterostructures induced by microwave radiation. Applied Physics Letters 97 (18), p. 182107.
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Other URL: http://dx.doi.org/10.1063/1.3507896
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.
|Date:||4 October 2010|
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev|
Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Keywords:||cadmium compounds, III-V semiconductors, II-VI semiconductors, indium compounds, manganese compounds, spin polarised transport, Zeeman effect|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||22 May 2012 13:06|
|Last Modified:||22 May 2012 13:06|