Spin-Guide: A New Source of High Spin-Polarized Current

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dc.creatorGurzhi, R. N.
dc.creatorKalinenko, A. N.
dc.creatorKopeliovich, A. I.
dc.creatorYanovsky, A. V.
dc.creatorBogachek, E. N.
dc.creatorLandman, Uzi
dc.date2003-01-10
dc.date2003-01-22
dc.date.accessioned2026-07-07T02:49:06Z
dc.date.available2026-07-07T02:49:06Z
dc.descriptionWe propose a ``spin-guide'' source for generation of electric currents with a high degree of spin polarization, allowing long-distance transmission of the spin-polarization. In the spin-guide scheme proposed here, a non-magnetic conducting channel is wrapped by a magnetic shell which preferentially transmits electrons with a particular spin polarization. It is shown that this method is significantly more effective then the spin-filter-like scheme where the current flows perpendicular to the interface between a ferromagnetic metal to a non-magnetic conducting material. Under certain conditions a spin-guide may generate an almost perfectly spin-polarized current, even when the magnetic material used is not fully polarized. The spin-guide is predicted to allow the transport of spin polarization over long distances which may exceed significantly the spin-flip length in the channel. In addition, it readily permits detection and control of the spin-polarization of the current. The spin-guide may be employed for spin-flow manipulations in semiconductors used in spintronic devices.
dc.description8 pages, 3 figures, added references
dc.identifierhttps://arxiv.org/abs/cond-mat/0301142
dc.identifierhttp://arxiv.org/abs/cond-mat/0301142
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20662
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin-Guide: A New Source of High Spin-Polarized Current
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