Please use this identifier to cite or link to this item: https://oar.tib.eu/jspui/handle/123456789/4969
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dc.rights.licenseCC BY 4.0 Unportedger
dc.contributor.authorKamashev, A.A.-
dc.contributor.authorGarif'yanov, N.N.-
dc.contributor.authorValidov, A.A.-
dc.contributor.authorSchumann, J.-
dc.contributor.authorKataev, V.-
dc.contributor.authorBüchner, B.-
dc.contributor.authorFominov, Y.V.-
dc.contributor.authorGarifullin, I.A.-
dc.date.accessioned2020-07-18T06:12:35Z-
dc.date.available2020-07-18T06:12:35Z-
dc.date.issued2019-
dc.identifier.urihttp://dx.doi.org/10.34657/3598-
dc.identifier.urihttps://oar.tib.eu/jspui/handle/123456789/4969
dc.description.abstractWe report the superconducting properties of the Co2Cr1-xFexAly/Cu/Ni/Cu/Pb spin-valve structure the magnetic part of which comprises the Heusler alloy layer HA = Co2Cr1-xFexAly with a high degree of spin polarization (DSP) of the conduction band and a Ni layer of variable thickness. The separation between the superconducting transition curves measured for the parallel (α = 0°) and perpendicular (α = 90°) orientation of the magnetization of the HA and the Ni layers reaches up to 0.5 K (α is the angle between the magnetization of two ferromagnetic layers). For all studied samples the dependence of the superconducting transition temperature Tc on α demonstrates a deep minimum in the vicinity of the perpendicular configuration of the magnetizations. This suggests that the observed minimum and the corresponding full switching effect of the spin valve is caused by the long-range triplet component of the superconducting condensate in the multilayer. Such a large effect can be attributed to a half-metallic nature of the HA layer, which in the orthogonal configuration efficiently draws off the spin-polarized Cooper pairs from the space between the HA and Ni layers. Our results indicate a significant potential of the concept of a superconducting spin-valve multilayer comprising a half-metallic ferromagnet, recently proposed by A. Singh et al., Phys. Rev. X 2015, 5, 021019, in achieving large values of the switching effect.eng
dc.description.sponsorshipLeibniz_Fonds-
dc.language.isoeng-
dc.publisherFrankfurt am Main : Beilstein-Institut zur Förderung der Chemischen Wissenschaften-
dc.relation.ispartofseriesBeilstein Journal of Nanotechnology Vol. 10 (2019)-
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/ger
dc.subjectFerromagneteng
dc.subjectProximity effecteng
dc.subjectSuperconductoreng
dc.subjectAluminum alloyseng
dc.subjectChromium alloyseng
dc.subjectCobalt alloyseng
dc.subjectCoppereng
dc.subjectFerromagnetic materialseng
dc.subjectFerromagnetismeng
dc.subjectIron alloyseng
dc.subjectMagnetizationeng
dc.subjectMagnetoresistanceeng
dc.subjectMagnetseng
dc.subjectMultilayerseng
dc.subjectNickeleng
dc.subjectSpin polarizationeng
dc.subjectSuperconducting materialseng
dc.subjectFerromagnetseng
dc.subjectHalf-metallic ferromagnetseng
dc.subjectOrthogonal configurationseng
dc.subjectProximity effectseng
dc.subjectSpin-valve multilayerseng
dc.subjectSuperconducting condensateseng
dc.subjectSuperconducting propertieseng
dc.subjectSuperconducting transitionseng
dc.subjectSuperconducting transition temperatureeng
dc.subject.ddc530-
dc.titleSuperconducting switching due to a triplet component in the Pb/Cu/Ni/Cu/Co2Cr1-xFexAly spin-valve structureeng
dc.typearticle-
dc.typeText-
dc.description.versionpublishedVersioneng
local.accessRightsopenAccess-
wgl.contributorIFWger
wgl.subjectPhysikger
wgl.typeZeitschriftenartikelger
dc.bibliographicCitation.firstPage1458-
dc.bibliographicCitation.lastPage1463-
dc.bibliographicCitation.volume10-
dc.relation.doihttps://doi.org/10.3762/bjnano.10.144-
dc.relation.issn2190-4286-
dcterms.bibliographicCitation.journalTitleBeilstein Journal of Nanotechnology-
local.identifier.doihttp://dx.doi.org/10.34657/3598-
Appears in Collections:Physik



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