Spin blockade at semiconductor/ferromagnet junctions

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dc.creatorPershin, Yu. V.
dc.creatorDi Ventra, M.
dc.date2007-01-27
dc.date2007-03-19
dc.date.accessioned2026-07-07T08:05:44Z
dc.date.available2026-07-07T08:05:44Z
dc.descriptionWe study theoretically extraction of spin-polarized electrons at nonmagnetic semiconductor/ferromagnet junctions. The outflow of majority spin electrons from the semiconductor into the ferromagnet leaves a cloud of minority spin electrons in the semiconductor region near the junction, forming a local spin-dipole configuration at the semiconductor/ferromagnet interface. This minority spin cloud can limit the majority spin current through the junction creating a pronounced spin-blockade at a critical current. We calculate the critical spin-blockade current in both planar and cylindrical geometries and discuss possible experimental tests of our predictions.
dc.descriptionto be published in PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0701678
dc.identifierhttp://arxiv.org/abs/cond-mat/0701678
dc.identifierPhys. Rev. B 75, 193301 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.193301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/130374
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin blockade at semiconductor/ferromagnet junctions
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