Mostrar el registro sencillo del ítem

Stimulation of a Singlet Superconductivity in SFS Weak Links by Spin-Exchange Scattering of Cooper Pairs

hal.structure.identifierInstitute for Physics of Microstructures of the RAS
hal.structure.identifierLobachevsky State University of Nizhny Novgorod
dc.contributor.authorSAMOKHVALOV, A. V.
hal.structure.identifierDepartment of Physics (Göthenburg)
dc.contributor.authorSHEKHTER, R. I.
hal.structure.identifierInstitut universitaire de France [IUF]
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBUZDIN, Alexandre I.
dc.date.created2014-02-07
dc.date.issued2014-07-11
dc.identifier.issn2045-2322
dc.description.abstractEnJosephson junctions with a ferromagnetic metal weak link reveal a very strong decrease of the critical current compared to a normal metal weak link. We demonstrate that in the ballistic regime the presence of a small region with a non-collinear magnetization near the center of a ferromagnetic weak link restores the critical current inherent to the normal metal. The above effect can be stimulated by additional electrical bias of the magnetic gate which induces a local electron depletion of ferromagnetic barrier. The underlying physics of the effect is the interference phenomena due to the magnetic scattering of the Cooper pair, which reverses its total momentum in the ferromagnet and thus compensates the phase gain before and after the spin-reversed scattering. In contrast with the widely discussed triplet long ranged proximity effect we elucidate a new singlet long ranged proximity effect. This phenomenon opens a way to easily control the properties of SFS junctions and inversely to manipulate the magnetic moment via the Josephson current.
dc.description.sponsorshipEtats de Majorana et d'Andreev dans des circuits hybrides combinant des matériaux magnétiques et supraconducteurs - ANR-12-BS04-0016
dc.language.isoen
dc.publisherNature Publishing Group
dc.subject.enspintronics
dc.subject.ensuperconductinf properties and materials
dc.title.enStimulation of a Singlet Superconductivity in SFS Weak Links by Spin-Exchange Scattering of Cooper Pairs
dc.typeArticle de revue
dc.identifier.doi10.1038/srep05671
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Supraconductivité [cond-mat.supr-con]
dc.description.sponsorshipEuropeNew Century of Superconductivity: Ideas, Materials, Technologies
bordeaux.journalScientific Reports
bordeaux.page5671 (1-5)
bordeaux.volume4
bordeaux.peerReviewedoui
hal.identifierhal-01064024
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01064024v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific%20Reports&rft.date=2014-07-11&rft.volume=4&rft.spage=5671%20(1-5)&rft.epage=5671%20(1-5)&rft.eissn=2045-2322&rft.issn=2045-2322&rft.au=SAMOKHVALOV,%20A.%20V.&SHEKHTER,%20R.%20I.&BUZDIN,%20Alexandre%20I.&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem