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Multiple Virtual Tunneling of Dirac Fermions in Granular Graphene
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pachoud, Alexandre | - |
dc.contributor.author | Jaiswal, Manu | - |
dc.contributor.author | Wang, Yu | - |
dc.contributor.author | Hong, Byung-Hee | - |
dc.contributor.author | Ahn, Jong-Hyun | - |
dc.contributor.author | Loh, Kian Ping | - |
dc.contributor.author | Oezyilmaz, Barbaros | - |
dc.date.accessioned | 2021-01-31T08:36:01Z | - |
dc.date.available | 2021-01-31T08:36:01Z | - |
dc.date.created | 2020-12-10 | - |
dc.date.issued | 2013-12 | - |
dc.identifier.citation | Scientific Reports, Vol.3, p. 3404 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.other | 118937 | - |
dc.identifier.uri | https://hdl.handle.net/10371/172276 | - |
dc.description.abstract | Graphene charge carriers behave as massless Dirac fermions, opening the exciting possibility to observe long-range virtual tunneling of electrons in a solid. In granular metals, electron hops arising from series of virtual transitions are predicted to yield observable currents at low-enough temperatures, but to date experimental evidence is lacking. We report on electron transport in granular graphene films self-assembled by hydrogenation of suspended graphene. While the log-conductance shows a characteristic T-1/2 temperature dependence, cooling the samples below 10 K drives a triple crossover: a slope break in log-conductance, simultaneous to a substantial increase in magneto-conductance and onset of large mesoscopic conductance fluctuations. These phenomena are signatures of virtual transitions of electrons between distant localized states, and conductance statistics reveal that the high crossover-temperature is due to the Dirac nature of granular graphene charge carriers. | - |
dc.language | 영어 | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Multiple Virtual Tunneling of Dirac Fermions in Granular Graphene | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 홍병희 | - |
dc.identifier.doi | 10.1038/srep03404 | - |
dc.citation.journaltitle | Scientific Reports | - |
dc.identifier.wosid | 000327784400001 | - |
dc.identifier.scopusid | 2-s2.0-84890224910 | - |
dc.citation.startpage | 3404 | - |
dc.citation.volume | 3 | - |
dc.identifier.sci | 000327784400001 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Hong, Byung-Hee | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | HYDROGENATED GRAPHENE | - |
dc.subject.keywordPlus | MESOSCOPIC FLUCTUATIONS | - |
dc.subject.keywordPlus | 2-DIMENSIONAL SYSTEM | - |
dc.subject.keywordPlus | HOPPING CONDUCTION | - |
dc.subject.keywordPlus | ELECTRIC-FIELD | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | LOCALIZATION | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | TRANSITION | - |
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