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dc.contributor.authorCharpentier, Sophie
dc.contributor.authorGalletti, Luca
dc.contributor.authorKunakova, Gunta
dc.contributor.authorArpaia, Riccardo
dc.contributor.authorSong, Yuxin
dc.contributor.authorBaghdadi, Reza
dc.contributor.authorWang, Shu Min
dc.contributor.authorKalaboukhov, Alexei
dc.contributor.authorOlsson, Eva
dc.contributor.authorTafuri, Francesco
dc.contributor.authorGolubev, Dmitry
dc.contributor.authorLinder, Jacob
dc.contributor.authorBauch, Thilo
dc.contributor.authorLombardi, Floriana
dc.identifier.citationNature Communications. 2017, 8:2019.nb_NO
dc.description.abstractTopological 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.nb_NO
dc.publisherNature Publishing Groupnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleInduced unconventional superconductivity on the surface states of Bi2Te3 topological insulatornb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalNature Communicationsnb_NO
dc.relation.projectNorges forskningsråd: 262633nb_NO
dc.description.localcode© The Author(s) 2017. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.nb_NO
cristin.unitnameInstitutt for fysikk

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal