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Josephson current between two p-wave superconducting nanowires in the presence of Rashba spin-orbit interaction and Zeeman magnetic fields

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dc.contributor.authorNakhmedov, E.
dc.contributor.authorAlekperov, O. Z.
dc.contributor.authorTatardar, F.
dc.contributor.authorMammadov, H.
dc.contributor.authorSuleymanli, B. D.
dc.date.accessioned2024-11-27T08:15:13Z
dc.date.available2024-11-27T08:15:13Z
dc.date.issued2020
dc.description.abstract© 2020 Elsevier B.V.Josephson current between two one-dimensional nanowires with proximity induced p-wave superconducting pairing is calculated in the presence of Rashba spin-orbit interaction, in-plane and normal magnetic fields. We show that Andreev retro-reflection is realized by means of two different channels. The main contribution to the Josephson current gives a scattering in a conventional particle-hole channel, when an electron-like quasiparticle reflects to a hole-like quasiparticle with opposite spin yielding a current which depends only on the order parameters’ phase differences φ and oscillates with 4π period. Second anomalous particle-hole channel, corresponding to the Andreev reflection of an incident electron-like quasiparticle to an hole-like quasiparticle with the same spin orientation, survives only in the presence of the in-plane magnetic field. The contribution of this channel to the Josephson current oscillates with 4π period not only with φ but also with orientational angle of the in-plane magnetic field θ resulting in a magneto-Josephson effect. In the presence of Rashba spin-orbit coupling (SOC) and normal-to-plane magnetic field h, a forbidden gap is shown to open in the dependence of Andreev bound state energies on the phases φ and θ at several values of SOC strength and magnetic field, where Josephson current seems to vanish. We present a detailed theoretical analysis of both DC and AC Josephson effects in such a system showing contributions from these channels and discuss experiments which can test our theory.
dc.identifier.citationJosephson current between two p-wave superconducting nanowires in the presence of Rashba spin-orbit interaction and Zeeman magnetic fields / Nakhmedov, E. [et al.] // Physica C: Superconductivity and its Applications. - 2020. - 579. - 10.1016/j.physc.2020.1353753
dc.identifier.doi10.1016/j.physc.2020.1353753
dc.identifier.urihttps://www.doi.org/10.1016/j.physc.2020.1353753
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85091985580&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000589913600008
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22404
dc.relation.ispartofPhysica C: Superconductivity and its Applications
dc.titleJosephson current between two p-wave superconducting nanowires in the presence of Rashba spin-orbit interaction and Zeeman magnetic fields
dc.typeArticle
dspace.entity.typePublication
oaire.citation.volume579
relation.isOrgUnitOfPublicationba0b4738-e6bd-4285-bda5-16ab2240dbd1
relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
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