Long-Range Spin Accumulation from Heat Injection in Mesoscopic Superconductors with Zeeman Splitting
2015 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 114, no 16, 167002Article in journal (Refereed) Published
We describe far-from-equilibrium nonlocal transport in a diffusive superconducting wire with a Zeeman splitting, taking into account different spin relaxation mechanisms. We demonstrate that due to the Zeeman splitting, an injection of current in a superconducting wire creates spin accumulation that can only relax via thermalization. This effect leads to a long-range spin accumulation detectable in the nonlocal signal. Our model gives a qualitative explanation and provides accurate fits of recent experimental results in terms of realistic parameters.
Place, publisher, year, edition, pages
2015. Vol. 114, no 16, 167002
IdentifiersURN: urn:nbn:se:kth:diva-171696DOI: 10.1103/PhysRevLett.114.167002ISI: 000353330000007PubMedID: 25955071ScopusID: 2-s2.0-84929601111OAI: oai:DiVA.org:kth-171696DiVA: diva2:844718
FunderEU, European Research Council, 240362-HeattronicsSwedish Research Council, 325-2009-7664Swedish Research Council, 642-2013-7837
QC 201508072015-08-072015-08-052015-08-07Bibliographically approved