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dc.contributor.authorVolckaert, Klara
dc.contributor.authorRostami, Habib
dc.contributor.authorBiswas, Deepnarayan
dc.contributor.authorMarkovic, Igor
dc.contributor.authorAndreatta, Federico
dc.contributor.authorSanders, Charlotte
dc.contributor.authorMajchrzak, Paulina
dc.contributor.authorCacho, Cephise
dc.contributor.authorChapman, Richard T.
dc.contributor.authorWyatt, Adam
dc.contributor.authorSpringate, Emma
dc.contributor.authorLizzit, Daniel
dc.contributor.authorBignardi, Luca
dc.contributor.authorLizzit, Silvano
dc.contributor.authorMahatha, Sanjoy
dc.contributor.authorBianchi, Marco
dc.contributor.authorLanata, Nicola
dc.contributor.authorKing, Phil
dc.contributor.authorMiwa, Jill A.
dc.contributor.authorBalatsky, Alexander
dc.contributor.authorHofmann, Philip
dc.contributor.authorUlstrup, Søren
dc.date.accessioned2019-11-29T10:30:03Z
dc.date.available2019-11-29T10:30:03Z
dc.date.issued2019-12-12
dc.identifier.citationVolckaert , K , Rostami , H , Biswas , D , Markovic , I , Andreatta , F , Sanders , C , Majchrzak , P , Cacho , C , Chapman , R T , Wyatt , A , Springate , E , Lizzit , D , Bignardi , L , Lizzit , S , Mahatha , S , Bianchi , M , Lanata , N , King , P , Miwa , J A , Balatsky , A , Hofmann , P & Ulstrup , S 2019 , ' Momentum-resolved linear dichroism in bilayer MoS 2 ' , Physical Review. B, Condensed matter and materials physics , vol. 100 , 241406(R) . https://doi.org/10.1103/PhysRevB.100.241406en
dc.identifier.issn1098-0121
dc.identifier.otherPURE: 263713229
dc.identifier.otherPURE UUID: 0c96064f-8406-4c06-9448-ebb76564f0c2
dc.identifier.otherORCID: /0000-0002-1631-9556/work/67167764
dc.identifier.otherScopus: 85076779888
dc.identifier.otherWOS: 000502267000003
dc.identifier.urihttp://hdl.handle.net/10023/19027
dc.descriptionAuthors gratefully acknowledge funding from VILLUM FONDEN through the Young Investigator Program (Grant No. 15375) and the Centre of Excellence for Dirac Materials (Grant No. 11744), the Danish Council for Independent Research, Natural Sciences under the Sapere Aude program (Grants No. DFF-4002-00029 and No. DFF-6108-00409), and the Aarhus University Research Foundation. Access to the Artemis Facility was funded by STFC. H.R. acknowledges the support from the Swedish Research Council (VR 2018-04252). I.M. acknowledges financial support by the International Max Planck Research School for Chemistry and Physics of Quantum Materials (IMPRS-CPQM). The authors also acknowledge The Royal Society and The Leverhulme Trust.en
dc.description.abstractIn solid state photoemission experiments it is possible to extract information about the symmetry and orbital character of the electronic wave functions via the photoemission selection rules that shape the measured intensity. This approach can be expanded in a pump-probe experiment where the intensity contains additional information about interband excitations induced by an ultrafast laser pulse with tunable polarization. Here, we find an unexpected strong linear dichroism effect (up to 42.4%) in the conduction band of bilayer MoS2, when measuring energy- and momentum-resolved snapshots of excited electrons by time- and angle-resolved photoemission spectroscopy. We model the polarization-dependent photoemission intensity in the transiently-populated conduction band using the semiconductor Bloch equations. Our theoretical analysis reveals a strongly anisotropic momentum-dependence of the optical excitations due to intralayer single-particle hopping, which explains the observed linear dichroism.
dc.language.isoeng
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.rightsCopyright © 2019 American Physical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1103/PhysRevB.100.241406en
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectDASen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleMomentum-resolved linear dichroism in bilayer MoS2en
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.Centre for Designer Quantum Materialsen
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/10.1103/PhysRevB.100.241406
dc.description.statusPeer revieweden


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