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Article: Graphene nanoribbons with smooth edges behave as quantum wires

TitleGraphene nanoribbons with smooth edges behave as quantum wires
Authors
Issue Date2011
Citation
Nature Nanotechnology, 2011, v. 6, n. 9, p. 563-567 How to Cite?
AbstractGraphene nanoribbons with perfect edges are predicted to exhibit interesting electronic and spintronic properties, notably quantum-confined bandgaps and magnetic edge states. However, so far, graphene nanoribbons produced by lithography have had rough edges, as well as low-temperature transport characteristics dominated by defects (mainly variable range hopping between localized states in a transport gap near the Dirac point5-9). Here, we report that one- and two-layer nanoribbon quantum dots made by unzipping carbon nanotubes10 exhibit well-defined quantum transport phenomena, including Coulomb blockade, the Kondo effect, clear excited states up to ∼20meV, and inelastic co-tunnelling. Together with the signatures of intrinsic quantum-confined bandgaps and high conductivities, our data indicate that the nanoribbons behave as clean quantum wires at low temperatures, and are not dominated by defects. © 2011 Macmillan Publishers Limited. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/334259
ISSN
2023 Impact Factor: 38.1
2023 SCImago Journal Rankings: 14.577
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Xinran-
dc.contributor.authorOuyang, Yijian-
dc.contributor.authorJiao, Liying-
dc.contributor.authorWang, Hailiang-
dc.contributor.authorXie, Liming-
dc.contributor.authorWu, Justin-
dc.contributor.authorGuo, Jing-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-10-20T06:46:51Z-
dc.date.available2023-10-20T06:46:51Z-
dc.date.issued2011-
dc.identifier.citationNature Nanotechnology, 2011, v. 6, n. 9, p. 563-567-
dc.identifier.issn1748-3387-
dc.identifier.urihttp://hdl.handle.net/10722/334259-
dc.description.abstractGraphene nanoribbons with perfect edges are predicted to exhibit interesting electronic and spintronic properties, notably quantum-confined bandgaps and magnetic edge states. However, so far, graphene nanoribbons produced by lithography have had rough edges, as well as low-temperature transport characteristics dominated by defects (mainly variable range hopping between localized states in a transport gap near the Dirac point5-9). Here, we report that one- and two-layer nanoribbon quantum dots made by unzipping carbon nanotubes10 exhibit well-defined quantum transport phenomena, including Coulomb blockade, the Kondo effect, clear excited states up to ∼20meV, and inelastic co-tunnelling. Together with the signatures of intrinsic quantum-confined bandgaps and high conductivities, our data indicate that the nanoribbons behave as clean quantum wires at low temperatures, and are not dominated by defects. © 2011 Macmillan Publishers Limited. All rights reserved.-
dc.languageeng-
dc.relation.ispartofNature Nanotechnology-
dc.titleGraphene nanoribbons with smooth edges behave as quantum wires-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1038/nnano.2011.138-
dc.identifier.scopuseid_2-s2.0-80052561926-
dc.identifier.volume6-
dc.identifier.issue9-
dc.identifier.spage563-
dc.identifier.epage567-
dc.identifier.eissn1748-3395-
dc.identifier.isiWOS:000294550000012-

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