Self-heating and nonlinear current-voltage characteristics in bilayer graphene

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorViljas, J. K.
dc.contributor.authorFay, A.
dc.contributor.authorWiesner, M.
dc.contributor.authorHakonen, Pertti J.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-09-04T10:15:21Z
dc.date.available2015-09-04T10:15:21Z
dc.date.issued2011
dc.description.abstractWe demonstrate by experiments and numerical simulations that the low-temperature current-voltage characteristics in diffusive bilayer graphene (BLG) exhibit a strong superlinearity at finite bias voltages. The superlinearity is weakly dependent on doping and on the length of the graphene sample. This effect can be understood as a result of Joule heating. It is stronger in BLG than in monolayer graphene (MLG), since the conductivity of BLG is more sensitive to temperature due to the higher density of electronic states at the Dirac point.en
dc.description.versionPeer revieweden
dc.format.extent205421/1-8
dc.format.mimetypeapplication/pdfen
dc.identifier.citationViljas, J. K. & Fay, A. & Wiesner, M. & Hakonen, Pertti J. 2011. Self-heating and nonlinear current-voltage characteristics in bilayer graphene. Physical Review B. Volume 83, Issue 20. 205421/1-8. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.83.205421en
dc.identifier.doi10.1103/physrevb.83.205421
dc.identifier.issn1098-0121 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/17617
dc.identifier.urnURN:NBN:fi:aalto-201509034232
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 83, Issue 20
dc.rights© 2011 American Physical Society (APS). This is the accepted version of the following article: Viljas, J. K. & Fay, A. & Wiesner, M. & Hakonen, Pertti J. 2011. Self-heating and nonlinear current-voltage characteristics in bilayer graphene. Physical Review B. Volume 83, Issue 20. 205421/1-8. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.83.205421, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.205421.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordgrapheneen
dc.subject.keywordBLGen
dc.subject.keywordsuperlinearityen
dc.subject.otherPhysicsen
dc.titleSelf-heating and nonlinear current-voltage characteristics in bilayer grapheneen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen

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