Current and Noise in a FM/quantum dot/FM System

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dc.creatorSouza, F. M.
dc.creatorEgues, J. C.
dc.creatorJauho, A. P.
dc.date2002-09-11
dc.date.accessioned2026-07-07T02:47:14Z
dc.date.available2026-07-07T02:47:14Z
dc.descriptionUsing the Keldysh nonequilibrium technique we calculate current, noise and Fano factor in a ferromagnetic(FM)-quantum dot-ferromagnetic(FM) system with Coulomb interaction and spin-flip scattering in the dot. The lead polarizations are considered in both parallel P and antiparallel AP alignments. We show that spin-flip can increase both AP-current and AP-noise, while the P-current and P-noise are almost insensible to it. This fact leads to a suppression of the tunnelling magnetoresistance with increasing spin-flip rate.
dc.descriptionTo appear in Proceedings of ICPS 26
dc.identifierhttps://arxiv.org/abs/cond-mat/0209263
dc.identifierhttp://arxiv.org/abs/cond-mat/0209263
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19935
dc.subjectCondensed Matter
dc.titleCurrent and Noise in a FM/quantum dot/FM System
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