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dc.contributor.authorLu, Yao
dc.contributor.authorHeikkilä, Tero T.
dc.date.accessioned2019-10-18T07:00:11Z
dc.date.available2019-10-18T07:00:11Z
dc.date.issued2019
dc.identifier.citationLu, Y., & Heikkilä, T. T. (2019). Proximity effect in superconducting heterostructures with strong spin-orbit coupling and spin splitting. <i>Physical Review B</i>, <i>100</i>(10), Article 104514. <a href="https://doi.org/10.1103/PhysRevB.100.104514" target="_blank">https://doi.org/10.1103/PhysRevB.100.104514</a>
dc.identifier.otherCONVID_33270661
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/65943
dc.description.abstractIt has been shown that singlet Cooper pairs can be converted into triplet ones and diffuse into a ferromagnet over a long distance in a phenomenon known as the long-range proximity effect (LRPE). This happens in materials with inhomogeneous magnetism or spin-orbit coupling (SOC). Most of the previous studies focus on the cases with small SOC and exchange field. However, the physics was not clear when SOC and exchange field strength are both much greater than the disorder strength. In this work, we consider a two-dimensional system with a large Rashba-type SOC and exchange field in the case where only one band is partially occupied. We develop a generalized quasiclassical theory by projecting the Green function onto the partially occupied band (POB). We find that when the SOC energy scale is comparable with the exchange field, there is no LRPE. The reason is that the nonmagnetic impurities together with the large SOC and exchange field can effectively generate spin-flip scattering, which suppresses the proximity effect. We also show that when increasing either SOC or exchange field, the decay length of superconducting correlations can be significantly increased due to an approximately restored time reversal symmetry or spin rotation symmetry around the z (out-of-plane) axis.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review B
dc.rightsIn Copyright
dc.titleProximity effect in superconducting heterostructures with strong spin-orbit coupling and spin splitting
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201910184516
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineNanoscience Centerfi
dc.contributor.oppiaineNanoscience Centeren
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9950
dc.relation.numberinseries10
dc.relation.volume100
dc.type.versionpublishedVersion
dc.rights.copyright© 2019 American Physical Society
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber317118
dc.subject.ysosuprajohtavuus
dc.subject.ysomagnetismi
dc.subject.ysosuprajohteet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p9398
jyx.subject.urihttp://www.yso.fi/onto/yso/p7808
jyx.subject.urihttp://www.yso.fi/onto/yso/p9946
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/PhysRevB.100.104514
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis work is supported by the Academy of Finland project HYNEQ (Project No. 317118).


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