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Spin Hanle effect in mesoscopic superconductors
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics. Aalto Univ, OV Lounasmaa Lab, Finland.
2015 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 91, no 2, 024506- p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2015. Vol. 91, no 2, 024506- p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-160389DOI: 10.1103/PhysRevB.91.024506ISI: 000348154400003Scopus ID: 2-s2.0-84921033969OAI: oai:DiVA.org:kth-160389DiVA: diva2:790878
Funder
EU, European Research Council, 240362-Heattronics
Note

QC 20150226

Available from: 2015-02-26 Created: 2015-02-19 Last updated: 2017-12-04Bibliographically approved

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