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

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buir.contributor.authorTanatar, Bilal
buir.contributor.orcidTanatar, Bilal|0000-0002-5246-0119
dc.citation.epage12en_US
dc.citation.spage1en_US
dc.citation.volumeNumber579en_US
dc.contributor.authorNakhmedov, E.
dc.contributor.authorSüleymanlı, B. D.
dc.contributor.authorAlekperov, O. Z.
dc.contributor.authorTatardar, F.
dc.contributor.authorMammadov, H.
dc.contributor.authorKonovko, A. A.
dc.contributor.authorSaletsky, A. M.
dc.contributor.authorShukrinov, Y. M.
dc.contributor.authorSengupta, K.
dc.contributor.authorTanatar, Bilal
dc.date.accessioned2021-03-05T05:32:06Z
dc.date.available2021-03-05T05:32:06Z
dc.date.issued2020
dc.departmentDepartment of Physicsen_US
dc.description.abstractJosephson 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.en_US
dc.description.provenanceSubmitted by Zeynep Aykut (zeynepay@bilkent.edu.tr) on 2021-03-05T05:32:06Z No. of bitstreams: 1 Josephson_current_between_two_p_wave_superconducting_nanowires_in_the_presence_of_Rashba_spin_orbit_interaction_and_Zeeman_magnetic_fields.pdf: 3628915 bytes, checksum: 983e832a2498dfd0272e69fa85d6c322 (MD5)en
dc.description.provenanceMade available in DSpace on 2021-03-05T05:32:06Z (GMT). No. of bitstreams: 1 Josephson_current_between_two_p_wave_superconducting_nanowires_in_the_presence_of_Rashba_spin_orbit_interaction_and_Zeeman_magnetic_fields.pdf: 3628915 bytes, checksum: 983e832a2498dfd0272e69fa85d6c322 (MD5) Previous issue date: 2020en
dc.embargo.release2022-12-15
dc.identifier.doi10.1016/j.physc.2020.1353753en_US
dc.identifier.issn0921-4534
dc.identifier.urihttp://hdl.handle.net/11693/75798
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://dx.doi.org/10.1016/j.physc.2020.1353753en_US
dc.source.titlePhysica C: Superconductivity and its Applicationsen_US
dc.subjectRashba spin-orbit interactionen_US
dc.subjectZeeman magnetic fieldsen_US
dc.subjectJosephson currenten_US
dc.subjectAndreev retro-reflectionen_US
dc.subjectRashba spin-orbit coupling (SOC)en_US
dc.subjectAndreev bound state energiesen_US
dc.titleJosephson current between two p-wave superconducting nanowires in the presence of Rashba spin-orbit interaction and Zeeman magnetic fieldsen_US
dc.typeArticleen_US

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