DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, SW | - |
dc.contributor.author | Shin, WJ | - |
dc.contributor.author | Kim, J | - |
dc.contributor.author | Moreschini, L | - |
dc.contributor.author | Yeom, HW | - |
dc.contributor.author | Rotenberg, E | - |
dc.contributor.author | Bostwick, A | - |
dc.contributor.author | Kim, KS | - |
dc.date.accessioned | 2017-07-19T13:43:35Z | - |
dc.date.available | 2017-07-19T13:43:35Z | - |
dc.date.created | 2017-02-22 | - |
dc.date.issued | 2016-05-05 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37466 | - |
dc.description.abstract | Kinks near the Fermi level observed in angle-resolved photoemission spectroscopy (ARPES) have been widely accepted to represent electronic coupling to collective excitations, but kinks at higher energies have eluded a unified description. We identify the mechanism leading to such kink features by means of ARPES and tight-binding band calculations on sigma bands of graphene, where anomalous kinks at energies as high as similar to 4 eV were reported recently [Phys. Rev. Lett. 111, 216806 (2013)]. We found that two s bands show a strong intensity modulation with abruptly vanishing intensity near the kink features, which is due to sublattice interference. The interference induced local singularity in the matrix element is a critical factor that gives rise to apparent kink features, as confirmed by our spectral simulations without involving any coupling to collective excitations. | - |
dc.language | English | - |
dc.publisher | American Physical Society | - |
dc.relation.isPartOf | Physical Review Letters | - |
dc.title | Sublattice Interference as the Origin of sigma Band Kinks in Graphene | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevLett.116.186802 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Physical Review Letters, v.116, no.18 | - |
dc.identifier.wosid | 000375669300015 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.number | 18 | - |
dc.citation.title | Physical Review Letters | - |
dc.citation.volume | 116 | - |
dc.contributor.affiliatedAuthor | Yeom, HW | - |
dc.identifier.scopusid | 2-s2.0-84966349978 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 6 | - |
dc.description.scptc | 5 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ANGLE-RESOLVED PHOTOEMISSION | - |
dc.subject.keywordPlus | BILAYER GRAPHENE | - |
dc.subject.keywordPlus | SUPERCONDUCTORS | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | ENERGY | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
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