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dc.contributor.authorArjoranta, Juho
dc.contributor.authorHeikkilä, Tero
dc.date.accessioned2016-06-06T05:43:15Z
dc.date.available2016-06-06T05:43:15Z
dc.date.issued2016
dc.identifier.citationArjoranta, J., & Heikkilä, T. (2016). Intrinsic spin-orbit interaction in diffusive normal wire Josephson weak links: Supercurrent and density of states. <i>Physical Review B</i>, <i>93</i>(2), Article 024522. <a href="https://doi.org/10.1103/PhysRevB.93.024522" target="_blank">https://doi.org/10.1103/PhysRevB.93.024522</a>
dc.identifier.otherCONVID_25569937
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/50115
dc.description.abstractWe study the effect of the intrinsic (Rashba or Dresselhaus) spin-orbit interaction in superconductor–nanowire–superconductor (SNS) weak links in the presence of a spin-splitting field that can result either from an intrinsic exchange field or the Zeeman effect of an applied field. We solve the full nonlinear Usadel equations numerically [The code used for calculating the results in this paper is available in https://github.com/wompo/Usadel-for-nanowires] and analyze the resulting supercurrent through the weak link and the behavior of the density of states in the center of the wire. We point out how the presence of the spin-orbit interaction gives rise to a long-range spin triplet supercurrent, which remains finite even in the limit of very large exchange fields. In particular, we show how rotating the field leads to a sequence of transitions between the 0 and π states as a function of the angle between the exchange field and the spin-orbit field. Simultaneously, the triplet pairing leads to a zero-energy peak in the density of states. We proceed by solving the linearized Usadel equations, showing the correspondence to the solutions of the full equations and detail the emergence of the long-range supercurrent components. Our studies are relevant for ongoing investigations of supercurrent in semiconductor nanowires in the limit of several channels and in the presence of disorder.en
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review B
dc.subject.othernanowires
dc.subject.otherJosephson weak links
dc.subject.otherintrinsic spin-orbit interaction
dc.subject.othersupercurrent
dc.titleIntrinsic spin-orbit interaction in diffusive normal wire Josephson weak links: Supercurrent and density of states
dc.typeresearch article
dc.identifier.urnURN:NBN:fi:jyu-201606032869
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.date.updated2016-06-03T12:15:07Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn1098-0121
dc.relation.numberinseries2
dc.relation.volume93
dc.type.versionpublishedVersion
dc.rights.copyright© 2016 American Physical Society. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.type.publicationarticle
dc.subject.ysosuprajohteet
jyx.subject.urihttp://www.yso.fi/onto/yso/p9946
dc.relation.doi10.1103/PhysRevB.93.024522
jyx.fundinginformationThis work was supported by the Academy of Finland through its Center of Excellence program under Project No. 284594, and by the European Research Council (Grant No. 240362-Heattronics).
dc.type.okmA1


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