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원자제어저차원전자계연구단
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Interplay of electron-electron and electron-phonon interactions in the low-temperature phase of 1T-TaS2

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dc.contributor.authorDoohee Cho-
dc.contributor.authorCho Y.-H.-
dc.contributor.authorCheong S.-W.-
dc.contributor.authorKim K.-S.-
dc.contributor.authorHan Woong Yeom-
dc.date.available2016-01-07T09:11:44Z-
dc.date.created2015-09-08ko
dc.date.issued2015-08-
dc.identifier.issn2469-9950-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/1931-
dc.description.abstractWe investigate the interplay of the electron-electron and electron-phonon interactions in the electronic structure of an exotic insulating state in the layered dichalcogenide 1T-TaS2, where the charge-density-wave (CDW) order coexists with a Mott correlation gap. Scanning tunneling microscopy and spectroscopy measurements with high spatial and energy resolution determine unambiguously the CDW and the Mott gap as 0.20-0.24 eV and 0.32 eV, respectively, through the real space electron phases measured across the multiply formed energy gaps. An unusual local reduction of the Mott gap is observed on the defect site, which indicates the renormalization of the on-site Coulomb interaction by the electron-phonon coupling as predicted by the Hubbard-Holstein model. The Mott-gap renormalization provides insight into the disorder-induced quasimetallic phases of 1T-TaS2. © 2015 American Physical Society. ©2015 American Physical Society-
dc.description.uri1-
dc.language영어-
dc.publisherAMER PHYSICAL SOC-
dc.titleInterplay of electron-electron and electron-phonon interactions in the low-temperature phase of 1T-TaS2-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000359676900004-
dc.identifier.scopusid2-s2.0-84940055324-
dc.identifier.rimsid20933ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorDoohee Cho-
dc.contributor.affiliatedAuthorHan Woong Yeom-
dc.identifier.doi10.1103/PhysRevB.92.085132-
dc.identifier.bibliographicCitationPHYSICAL REVIEW B, v.92, no.8, pp.085132-
dc.citation.titlePHYSICAL REVIEW B-
dc.citation.volume92-
dc.citation.number8-
dc.citation.startPage085132-
dc.date.scptcdate2018-10-01-
dc.description.wostc13-
dc.description.scptc13-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
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