Spin currents in diluted magnetic semiconductors (extended version)
| Autor: | Ganichev, S. D., Tarasenko, S. A., Bel'kov, V. V., Olbrich, P., Eder, W., Yakovlev, D. R., Kolkovsky, V., Zaleszczyk, W., Karczewski, G., Wojtowicz, T., Weiss, D. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.102.156602 |
| Popis: | Spin currents resulting in the zero-bias spin separation have been observed in unbiased diluted magnetic semiconductor structures (Cd,Mn)Te/(Cd,Mg)Te. The pure spin current generated due to the electron gas heating by terahertz radiation is converted into a net electric current by application of an external magnetic field. We demonstrate that polarization of the magnetic ion system enhances drastically the conversion due to the spin-dependent scattering by localized Mn(2+) ions and the giant Zeeman splitting. Comment: 6 pages, 4 figures |
| Databáze: | arXiv |
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