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  • Chua, C.University Of Cambridge,University of Cambridge, England (author)

Observation of Coulomb blockade in nanostructured epitaxial bilayer graphene on SiC

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • Elsevier BV,2017

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:cea3684d-4c77-426b-a5c6-e5a08a4d89dd
  • https://research.chalmers.se/publication/249822URI
  • https://doi.org/10.1016/j.carbon.2017.04.019DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138872URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Funding Agencies|Engineering and Physical Sciences Research Council [EP/L020963/1]; EU [696656 - GrapheneCore 1]
  • We study electron transport in nanostructures patterned in bilayer graphene patches grown epitaxially on SiC as a function of doping, magnetic field, and temperature. Away from charge neutrality transport is only weakly modulated by changes in carrier concentration induced by a local side-gate. At low n-type doping close to charge neutrality, electron transport resembles that in exfoliated graphene nanoribbons and is well described by tunnelling of single electrons through a network of Coulomb-blockaded islands. Under the influence of an external magnetic field, Coulomb blockade resonances fluctuate around an average energy and the gap shrinks as a function of magnetic field. At charge neutrality, however, conduction is less insensitive to external magnetic fields. In this regime we also observe a stronger suppression of the conductance below T*, which we interpret as a sign of broken interlayer symmetry or strong fluctuations in the edge/potential disorder.

Subject headings and genre

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  • Lartsev, Arseniy,1987Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden(Swepub:cth)arseniy (author)
  • Sui, JinggaoUniversity Of Cambridge,University of Cambridge, England (author)
  • Panchal, V.National Physical Laboratory (NPL),National Phys Lab, England (author)
  • Puddy, ReubenUniversity Of Cambridge,University of Cambridge, England (author)
  • Richardson, CarlyUniversity Of Cambridge,University of Cambridge, England (author)
  • Smith, Charles G.University Of Cambridge,University of Cambridge, England (author)
  • Janssen, TjbmNational Physical Laboratory (NPL),National Phys Lab, England (author)
  • Tzalenchuk, AlexanderNational Physical Laboratory (NPL),Royal Holloway University of London,National Phys Lab, England; Royal Holloway University of London, England (author)
  • Yakimova, RositsaLinköpings universitet,Halvledarmaterial,Tekniska fakulteten(Swepub:liu)rosia15 (author)
  • Kubatkin, Sergey,1959Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden(Swepub:cth)kubatkin (author)
  • Connolly, M.University Of Cambridge,University of Cambridge, England (author)
  • University Of CambridgeUniversity of Cambridge, England (creator_code:org_t)

Related titles

  • In:Carbon: Elsevier BV119, s. 426-4300008-62231873-3891

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