Extreme sensitivity of the electric-field-induced band gap to the electronic topological transition in sliding bilayer graphene
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kyu Won | - |
dc.contributor.author | Lee, Cheol Eui | - |
dc.date.accessioned | 2021-09-04T09:28:04Z | - |
dc.date.available | 2021-09-04T09:28:04Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-12-04 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/91606 | - |
dc.description.abstract | We have investigated the effect of electronic topological transition on the electric field-induced band gap in sliding bilayer graphene by using the density functional theory calculations. The electric field-induced band gap was found to be extremely sensitive to the electronic topological transition. At the electronic topological transition induced by layer sliding, four Dirac cones in the Bernal-stacked bilayer graphene reduces to two Dirac cones with equal or unequal Dirac energies depending on the sliding direction. While the critical electric field required for the band gap opening increases with increasing lateral shift for the two Dirac cones with unequal Dirac energies, the critical field is essentially zero with or without a lateral shift for the two Dirac cones with equal Dirac energies. The critical field is determined by the Dirac energy difference and the electronic screening effect. The electronic screening effect was also found to be enhanced with increasing lateral shift, apparently indicating that the massless helical and massive chiral fermions are responsible for the perfect and imperfect electronic screening, respectively. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | STATES | - |
dc.title | Extreme sensitivity of the electric-field-induced band gap to the electronic topological transition in sliding bilayer graphene | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Cheol Eui | - |
dc.identifier.doi | 10.1038/srep17490 | - |
dc.identifier.scopusid | 2-s2.0-84949256606 | - |
dc.identifier.wosid | 000365821900001 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.5 | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 5 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | STATES | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.