English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/209512
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Universal correspondence between edge spin accumulation and equilibrium spin currents in nanowires with spin-orbit coupling

AuthorsTokatly, I. V. ; Bujnowski, B.; Bergeret, F. S.
Issue Date1-Dec-2019
PublisherAmerican Physical Society
CitationPhysical Review B 100(21): 214422 (2019)
AbstractAlthough equilibrium spin currents (ESCs) may exist in materials with spin-orbit coupling, they are not transport currents and cannot lead to spin accumulation in the presence of time-reversal symmetry. It is for this reason that the detection of ESCs has remained elusive. Here we show that in a nanowire with spin-orbit coupling, breaking the time-reversal symmetry by a Zeeman field leads to a bulk equilibrium spin current which manifests itself in a sizable edge spin polarization, transverse to the Zeeman field. The net accumulated spin does not depend on specific properties of the wire ends, being fully determined by the bulk spin current. This bulk-boundary correspondence is a universal property that occurs in both the normal and superconducting states independently of the degree of disorder. The transverse edge spin polarization is strongly enhanced in the superconducting state when the Zeeman energy is of the order of the induced superconducting gap. This leads to a hitherto unknown transverse magnetic susceptibility that can be much larger than the longitudinal, and it drastically changes the paramagnetic response of the nanowire.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.100.214422
URIhttp://hdl.handle.net/10261/209512
Identifiersdoi: 10.1103/PhysRevB.100.214422
issn: 2469-9950
issn: 2469-9969
Appears in Collections:(CFM) Artículos
Files in This Item:
File Description SizeFormat 
Universal_correspondence.pdf472,83 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.