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dc.contributor.authorBawden, Lewis
dc.contributor.authorCooil, S. P.
dc.contributor.authorRiley, Jonathon Mark
dc.contributor.authorCollins-McIntyre, Liam James
dc.contributor.authorSunko, Veronika
dc.contributor.authorHunvik, K.
dc.contributor.authorLeandersson, M.
dc.contributor.authorPolley, C. M.
dc.contributor.authorBalasubramanian, T.
dc.contributor.authorKim, T. K.
dc.contributor.authorHoesch, M.
dc.contributor.authorWells, J. W.
dc.contributor.authorBalakrishnan, G.
dc.contributor.authorBahramy, M. S.
dc.contributor.authorKing, Philip David
dc.date.accessioned2016-05-24T15:30:04Z
dc.date.available2016-05-24T15:30:04Z
dc.date.issued2016-05-23
dc.identifier.citationBawden , L , Cooil , S P , Riley , J M , Collins-McIntyre , L J , Sunko , V , Hunvik , K , Leandersson , M , Polley , C M , Balasubramanian , T , Kim , T K , Hoesch , M , Wells , J W , Balakrishnan , G , Bahramy , M S & King , P D 2016 , ' Spin-valley locking in the normal state of a transition-metal dichalcogenide superconductor ' , Nature Communications , vol. 7 , 11711 . https://doi.org/10.1038/ncomms11711en
dc.identifier.issn2041-1723
dc.identifier.otherPURE: 242180583
dc.identifier.otherPURE UUID: c865ee35-d8d6-4ff5-8885-734ea29ee144
dc.identifier.otherScopus: 84971281688
dc.identifier.otherWOS: 000376205300001
dc.identifier.urihttp://hdl.handle.net/10023/8861
dc.descriptionWe gratefully acknowledge support from the Engineering and Physical Sciences Research Council, UK (work at St Andrews under Grant No. EP/I031014/1 and work at Warwick under Grant No. EP/M028771/1) and the International Max Planck partnership. PDCK acknowledges support from the Royal Society through a University Research Fellowship. MSB was supported by the Grant-in-Aid for Scientific Research (S) (No. 24224009) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. LB, JR, and VS acknowledge studentship funding from EPSRC through grant nos. EP/G03673X/1, EP/L505079/1, and EP/L015110/1, respectively. The experiments at MAX IV Laboratory were made possible through funding from the Swedish Research Council and the Knut and Alice Wallenberg Foundation.en
dc.description.abstractMetallic transition-metal dichalcogenides (TMDCs) are benchmark systems for studying and controlling intertwined electronic orders in solids, with superconductivity developing from a charge density-wave state. The interplay between such phases is thought to play a critical role in the unconventional superconductivity of cuprates, Fe-based, and heavy-fermion systems, yet even for the more moderately-correlated TMDCs, their nature andorigins have proved controversial. Here, we study a prototypical example, 2H-NbSe2, by spin-and angle-resolved photoemission and first-principles theory. We find that the normal state,from which its hallmark collective phases emerge, is characterised by quasiparticles whose spin is locked to their valley pseudospin. This results from a combination of strong spin-orbit interactions and local inversion symmetry breaking, while interlayer coupling further drives a rich three-dimensional momentum dependence of the underlying Fermi surface spintexture. These findings necessitate a re-investigation of the nature of charge order and superconducting pairing in NbSe2 and related TMDCs.
dc.format.extent6
dc.language.isoeng
dc.relation.ispartofNature Communicationsen
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectDASen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleSpin-valley locking in the normal state of a transition-metal dichalcogenide superconductoren
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1038/ncomms11711
dc.description.statusPeer revieweden


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