Shot Noise in Ballistic Graphene

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorDanneau, R.
dc.contributor.authorWu, F.
dc.contributor.authorCraciun, M. F.
dc.contributor.authorRusso, S.
dc.contributor.authorTomi, M. Y.
dc.contributor.authorSalmilehto, J.
dc.contributor.authorMorpurgo, A. F.
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.accessioned2015-09-10T09:02:14Z
dc.date.available2015-09-10T09:02:14Z
dc.date.issued2008
dc.description.abstractWe have investigated shot noise in graphene field effect devices in the temperature range of 4.2–30 K at low frequency (f=600–850  MHz). We find that for our graphene samples with a large width over length ratio W/L, the Fano factor F reaches a maximum F∼1/3 at the Dirac point and that it decreases strongly with increasing charge density. For smaller W/L, the Fano factor at Dirac point is significantly lower. Our results are in good agreement with the theory describing that transport at the Dirac point in clean graphene arises from evanescent electronic states.en
dc.description.versionPeer revieweden
dc.format.extent196802/1-4
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDanneau, R. & Wu, F. & Craciun, M. F. & Russo, S. & Tomi, M. Y. & Salmilehto, J. & Morpurgo, A. F. & Hakonen, Pertti J. 2008. Shot Noise in Ballistic Graphene. Physical Review Letters. Volume 100, Issue 19. 196802/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.100.196802en
dc.identifier.doi10.1103/physrevlett.100.196802
dc.identifier.issn0031-9007 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/17637
dc.identifier.urnURN:NBN:fi:aalto-201509094248
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseriesVolume 100, Issue 19
dc.rights© 2008 American Physical Society (APS). This is the accepted version of the following article: Danneau, R. & Wu, F. & Craciun, M. F. & Russo, S. & Tomi, M. Y. & Salmilehto, J. & Morpurgo, A. F. & Hakonen, Pertti J. 2008. Shot Noise in Ballistic Graphene. Physical Review Letters. Volume 100, Issue 19. 196802/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.100.196802, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.196802.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordgraphene fielden
dc.subject.keywordDirac point, two-dimensional carbonen
dc.subject.otherPhysicsen
dc.titleShot Noise in Ballistic Grapheneen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
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