Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Charpentier, Sophie
dc.contributor.author Galletti, Luca
dc.contributor.author Kunakova, Gunta
dc.contributor.author Arpaia, Riccardo
dc.contributor.author Song, Yuxin
dc.contributor.author Baghdadi, Reza
dc.contributor.author Wang, Shu Min
dc.contributor.author Kalaboukhov, Alexei
dc.contributor.author Olsson, Eva
dc.contributor.author Tafuri, Francesco
dc.contributor.author Golubev, Dmitry
dc.contributor.author Linder, Jacob
dc.contributor.author Bauch, Thilo
dc.contributor.author Lombardi, Floriana
dc.date.accessioned 2018-02-09T09:54:21Z
dc.date.available 2018-02-09T09:54:21Z
dc.date.issued 2017-12-01
dc.identifier.citation Charpentier , S , Galletti , L , Kunakova , G , Arpaia , R , Song , Y , Baghdadi , R , Wang , S M , Kalaboukhov , A , Olsson , E , Tafuri , F , Golubev , D , Linder , J , Bauch , T & Lombardi , F 2017 , ' Induced unconventional superconductivity on the surface states of Bi 2 Te 3 topological insulator ' Nature Communications , vol 8 , no. 1 , 2019 , pp. 1-8 . DOI: 10.1038/s41467-017-02069-z en
dc.identifier.issn 2041-1723
dc.identifier.other PURE UUID: 22ca17f2-1fc4-4a18-8ae6-f4ad319b5291
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/induced-unconventional-superconductivity-on-the-surface-states-of-bi2te3-topological-insulator(22ca17f2-1fc4-4a18-8ae6-f4ad319b5291).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85037530696&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/16610168/s41467_017_02069_z.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/29756
dc.description.abstract Topological superconductivity is central to a variety of novel phenomena involving the interplay between topologically ordered phases and broken-symmetry states. The key ingredient is an unconventional order parameter, with an orbital component containing a chiral p x + ip y wave term. Here we present phase-sensitive measurements, based on the quantum interference in nanoscale Josephson junctions, realized by using Bi2Te3 topological insulator. We demonstrate that the induced superconductivity is unconventional and consistent with a sign-changing order parameter, such as a chiral p x + ip y component. The magnetic field pattern of the junctions shows a dip at zero externally applied magnetic field, which is an incontrovertible signature of the simultaneous existence of 0 and π coupling within the junction, inherent to a non trivial order parameter phase. The nano-textured morphology of the Bi2Te3 flakes, and the dramatic role played by thermal strain are the surprising key factors for the display of an unconventional induced order parameter. en
dc.format.extent 1-8
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Nature Communications en
dc.relation.ispartofseries Volume 8, issue 1 en
dc.rights openAccess en
dc.subject.other Chemistry(all) en
dc.subject.other Biochemistry, Genetics and Molecular Biology(all) en
dc.subject.other Physics and Astronomy(all) en
dc.subject.other 114 Physical sciences en
dc.title Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Chalmers University of Technology
dc.contributor.department University of Naples Federico II
dc.contributor.department Department of Applied Physics
dc.contributor.department Norwegian University of Science and Technology
dc.subject.keyword Chemistry(all)
dc.subject.keyword Biochemistry, Genetics and Molecular Biology(all)
dc.subject.keyword Physics and Astronomy(all)
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201802091252
dc.identifier.doi 10.1038/s41467-017-02069-z
dc.type.version publishedVersion


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