Nonlocal pure spin current injection via quantum pumping and crossed Andreev reflection

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dc.creatorBenjamin, Colin
dc.creatorCitro, Roberta
dc.date2005-02-24
dc.date2005-07-12
dc.date.accessioned2026-07-07T03:03:53Z
dc.date.available2026-07-07T03:03:53Z
dc.descriptionA pure spin current injector is proposed based on adiabatic pumping and crossed normal/Andreev reflection. The device consists of a three-terminal ferromagnet-superconductor-semiconductor system in which the injection of a pure spin current is into the semiconductor which is coupled to the superconductor within a coherence length away from the ferromagnet enabling the phenomena of crossed normal /Andreev reflection to operate. Quantum pumping is induced by adiabatically modulating two independent parameters of the ferromagnetic lead, namely the magnetization strength and the strength of coupling between the ferromagnet and the superconductor. The competition between the normal/Andreev reflection and the crossed normal/Andreev reflection, both induced by pumping, leads to non-local injection of a pure spin current into the semiconductor. The experimental realization of the proposed device is also discussed.
dc.description11 pages, 6 figures, 1 table; Accepted for publication in Physical Review B
dc.identifierhttps://arxiv.org/abs/cond-mat/0502589
dc.identifierhttp://arxiv.org/abs/cond-mat/0502589
dc.identifierPhys. Rev. B 72, 085340 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.085340
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25925
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleNonlocal pure spin current injection via quantum pumping and crossed Andreev reflection
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