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dc.contributor.authorFeng, Jiagui
dc.contributor.authorBiswas, Deepnarayan
dc.contributor.authorAkhil, Rajan
dc.contributor.authorWatson, Matthew D.
dc.contributor.authorMazzola, Federico
dc.contributor.authorClark, Oliver Jon
dc.contributor.authorUnderwood, Kaycee
dc.contributor.authorMarkovic, Igor
dc.contributor.authorMcLaren, Martin
dc.contributor.authorHunter, Andrew
dc.contributor.authorBurn, David M.
dc.contributor.authorDuffy, Liam B.
dc.contributor.authorBarua, Sourabh
dc.contributor.authorBalakrishnan, Geetha
dc.contributor.authorBertran, François
dc.contributor.authorLe Fevre, Patrick
dc.contributor.authorKim, Timur K.
dc.contributor.authorvan der Laan, Gerrit
dc.contributor.authorHesjedal, Thorsten
dc.contributor.authorWahl, Peter
dc.contributor.authorKing, Philip D C.
dc.date.accessioned2019-06-17T23:40:58Z
dc.date.available2019-06-17T23:40:58Z
dc.date.issued2018-07-11
dc.identifier253395018
dc.identifier6b32f7db-b250-48df-bf37-6400bed6377f
dc.identifier85048879913
dc.identifier000439008300060
dc.identifier.citationFeng , J , Biswas , D , Akhil , R , Watson , M D , Mazzola , F , Clark , O J , Underwood , K , Markovic , I , McLaren , M , Hunter , A , Burn , D M , Duffy , L B , Barua , S , Balakrishnan , G , Bertran , F , Le Fevre , P , Kim , T K , van der Laan , G , Hesjedal , T , Wahl , P & King , P D C 2018 , ' Electronic structure and enhanced charge-density wave order of monolayer VSe 2 ' , Nano Letters , vol. 18 , no. 7 , pp. 4493-4499 . https://doi.org/10.1021/acs.nanolett.8b01649en
dc.identifier.issn1530-6984
dc.identifier.otherORCID: /0000-0002-8635-1519/work/51010296
dc.identifier.otherORCID: /0000-0002-0737-2814/work/51010314
dc.identifier.otherORCID: /0000-0003-1350-6222/work/60427733
dc.identifier.otherORCID: /0000-0001-5356-3032/work/60427735
dc.identifier.otherORCID: /0000-0002-1631-9556/work/64698119
dc.identifier.urihttps://hdl.handle.net/10023/17910
dc.descriptionWe gratefully acknowledge support from The Leverhulme Trust (Grant Nos. RL-2016-006 and PLP-2015-144), The Royal Society, The Engineering and Physical Sciences Research Council, UK, for support under grant Nos. EP/I031014/1, EP/M023958/1, EP/P020151/1, and EP/M028771/1, and the International Max-Planck Partnership for Measurement and Observation at the Quantum Limit. OJC and KU acknowledge EPSRC for PhD studentship support through grant Nos. EP/K503162/1 and EP/L015110/1. IM acknowledges PhD studentship support from the IMPRS for the Chemistry and Physics of Quantum Materials. LBD acknowledges studentship support from EPSRC and the Science and Technology Facilities Council (UK).en
dc.description.abstractHow the interacting electronic states and phases of layered transition-metal dichalcogenides evolve when thinned to the single-layer limit is a key open question in the study of two-dimensional materials. Here, we use angle-resolved photoemission to investigate the electronic structure of monolayer VSe2 grown on bi-layer graphene/SiC. While the global electronic structure is similar to that of bulk VSe2, we show that, for the monolayer, pronounced energy gaps develop over the entire Fermi surface with decreasing temperature below Tc = 140 ± 5 K, concomitant with the emergence of charge-order superstructures evident in low-energy electron diraction. These observations point to a charge-density wave instability in the monolayer which is strongly enhanced over that of the bulk. Moreover, our measurements of both the electronic structure and of x-ray magnetic circular dichroism reveal no signatures of a ferromagnetic ordering, in contrast to the results of a recent experimental study as well as expectations from density-functional theory. Our study thus points to a delicate balance that can be realised between competing interacting states and phases in monolayer transition-metal dichalcogenides.
dc.format.extent7
dc.format.extent6867238
dc.language.isoeng
dc.relation.ispartofNano Lettersen
dc.subjectVSe2en
dc.subjectCharge-density waveen
dc.subjectTransition-metal dichalcogenideen
dc.subjectMonolayeren
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQCen
dc.titleElectronic structure and enhanced charge-density wave order of monolayer VSe2en
dc.typeJournal itemen
dc.contributor.sponsorThe Leverhulme Trusten
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorThe Leverhulme Trusten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doi10.1021/acs.nanolett.8b01649
dc.description.statusPeer revieweden
dc.date.embargoedUntil2019-06-18
dc.identifier.grantnumberPLP-2015-144en
dc.identifier.grantnumberEP/I031014/1en
dc.identifier.grantnumberEP/M023958/1en
dc.identifier.grantnumberEP/L015110/1en
dc.identifier.grantnumber2016-006en


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