dc.contributor.author | Shytov, Andrey | |
dc.contributor.author | Levitov, Leonid | |
dc.contributor.author | Song, Justin Chien Wen | |
dc.date.accessioned | 2014-02-24T19:12:40Z | |
dc.date.available | 2014-02-24T19:12:40Z | |
dc.date.issued | 2013-12 | |
dc.date.submitted | 2012-12 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/85084 | |
dc.description.abstract | We develop a theory of interaction effects in graphene superlattices, where tunable superlattice periodicity can be used as a knob to control the gap at the Dirac point. Applied to graphene on hexa-boron-nitride (G/h-BN), our theory predicts substantial many-body enhancement of this gap. Tunable by the moiré superlattice periodicity, a few orders of magnitude enhancement is reachable under optimal conditions. The Dirac point gap enhancement can be much larger than that of the minigaps opened by Bragg scattering at principal superlattice harmonics. This naturally explains the conundrum of large Dirac point gaps recently observed in G/h-BN heterostructures and their tunability by the G/h-BN twist angle. | en_US |
dc.language.iso | en_US | |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevLett.111.266801 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | American Physical Society | en_US |
dc.title | Electron Interactions and Gap Opening in Graphene Superlattices | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Song, Justin, Andrey Shytov, and Leonid Levitov. “Electron Interactions and Gap Opening in Graphene Superlattices.” Physical Review Letters 111, no. 26 (December 2013). © 2013 American Physical Society | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.contributor.mitauthor | Song, Justin Chien Wen | en_US |
dc.contributor.mitauthor | Levitov, Leonid | en_US |
dc.relation.journal | Physical Review Letters | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Song, Justin; Shytov, Andrey; Levitov, Leonid | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-4268-731X | |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |