Spintronics with NSN Junction of one-dimensional quantum wires : A study of Pure Spin Current and Magnetoresistance

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dc.creatorDas, Sourin
dc.creatorRao, Sumathi
dc.creatorSaha, Arijit
dc.date2007-10-27
dc.date2008-02-19
dc.date.accessioned2026-07-07T09:23:28Z
dc.date.available2026-07-07T09:23:28Z
dc.descriptionWe demonstrate possible scenarios for production of pure spin current and large tunnelling magnetoresistance ratios from elastic co-tunnelling and crossed Andreev reflection across a superconducting junction comprising of normal metal-superconductor-normal metal, where, the normal metal is a one-dimensional interacting quantum wire. We show that there are fixed points in the theory which correspond to the case of pure spin current. We analyze the influence of electron-electron interaction and see how it stabilizes or de-stabilizes the production of pure spin current. These fixed points can be of direct experimental relevance for spintronics application of normal metal-superconductor-normal metal junctions of one-dimensional quantum wires. We also calculate the power law temperature dependence of the crossed Andreev reflection enhanced tunnelling magnetoresistance ratio for the normal metal-superconductor-normal metal junction.
dc.descriptionFinal version to appear in Euro. Phys. Lett
dc.identifierhttps://arxiv.org/abs/0710.5240
dc.identifierhttp://arxiv.org/abs/0710.5240
dc.identifierEurophys. Lett. 81, 67001 (2008)
dc.identifierdoi:10.1209/0295-5075/81/67001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155743
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpintronics with NSN Junction of one-dimensional quantum wires : A study of Pure Spin Current and Magnetoresistance
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