Self-consistent study of transport in Mn-doped semiconductor heterostructures
Christian ErtlerInstitute of Theoretical Physics, Karl-Franzens University of Graz, Graz, AustriaPeter SenekowitschInstitute of Theoretical Physics, Karl-Franzens University of Graz, Graz, AustriaJaroslav FabianInstitute for Theoretical Physics, University of Regensburg, Regensburg, GermanyW. PötzInstitute of Theoretical Physics, Karl-Franzens University of Graz, Graz, Austria
2010en
ABI
Abstract
The interplay of transport and magnetic properties in quantum well heterostructures, which comprise wells made of diluted magnetic semiconductors, e.g., GaMnAs, is theoretically investigated. The ferromagnetism in the magnetic wells is mediated by the carriers tunneling in and out of the wells, leading to a highly nonlinear coupling of resonant tunneling and the ferromagnetic state. The ferromagnetism becomes controllable by the external applied bias leading to spin-filtering and self-sustained current and magnetization oscillations.
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Cited by 30 references