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Spin Hanle effect in mesoscopic superconductors
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Statistisk fysik. Aalto Univ, OV Lounasmaa Lab, Finland.
2015 (engelsk)Inngår i: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 91, nr 2, s. 024506-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present a theoretical study of spin transport in a superconducting mesoscopic spin valve under the action of a magnetic field misaligned with respect to the injected spin. We demonstrate that superconductivity can either strongly enhance or suppress the coherent spin rotation, depending on the type of spin relaxation mechanism being dominated either by spin-orbit coupling or spin-flip scattering at impurities. We also predict a subgap contribution to the nonlocal conductance in multiterminal superconducting hybrid structures which completely eliminates the effect of spin rotation at sufficiently low temperatures.

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2015. Vol. 91, nr 2, s. 024506-
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Identifikatorer
URN: urn:nbn:se:kth:diva-160389DOI: 10.1103/PhysRevB.91.024506ISI: 000348154400003Scopus ID: 2-s2.0-84921033969OAI: oai:DiVA.org:kth-160389DiVA, id: diva2:790878
Forskningsfinansiär
EU, European Research Council, 240362-Heattronics
Merknad

QC 20150226

Tilgjengelig fra: 2015-02-26 Laget: 2015-02-19 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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