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Long ranged singlet proximity effect in ferromagnetic nanowires

hal.structure.identifierKavli Institute of Nanosciences [Delft] [KI-NANO]
dc.contributor.authorKONSCHELLE, François
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorCAYSSOL, Jérôme
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorBUZDIN, Alexandre I.
dc.date.created2010-09-16
dc.date.issued2010-11-11
dc.identifier.issn1098-0121
dc.description.abstractEnRecently a long ranged superconductor/ferromagnet (S/F) proximity effect has been reported in Co crystalline nanowires [1, Nature, 6 389 (2010)]. Since the authors of [1] take care to avoid the existence of magnetic domains, the triplet character of the long ranged proximity effect is improbable. Here we demonstrate that in the one-dimensional ballistic regime the standard singlet S/F proximity effect becomes long ranged. We provide an exact solution for the decay of the superconducting correlations near critical temperature ($T_{c}$) and for arbitrary impurities concentration. In particular we find a specific regime, between the diffusive and ballistic ones, where the decay length is simply the electronic mean-free path. Finally possible experiments which could permit to elucidate the nature of the observed long ranged proximity effect in Co nanowires are discussed.
dc.description.sponsorshipElectronic EPR Source - ANR-07-NANO-0011
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enLong ranged singlet proximity effect in ferromagnetic nanowires
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.82.180509
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]
dc.identifier.arxiv1009.3181
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page180509
bordeaux.volume82
bordeaux.peerReviewedoui
hal.identifierhal-00539049
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00539049v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2010-11-11&rft.volume=82&rft.spage=180509&rft.epage=180509&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=KONSCHELLE,%20Fran%C3%A7ois&CAYSSOL,%20J%C3%A9r%C3%B4me&BUZDIN,%20Alexandre%20I.&rft.genre=article


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