Topographic and electronic contrast of the graphene moire on Ir(111) probed by scanning tunneling microscopy and noncontact atomic force microscopy

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Sun, Z.X.
dc.contributor.author Hämaläinen, Sampsa K.
dc.contributor.author Sainio, Jani
dc.contributor.author Lahtinen, Jouko
dc.contributor.author Vanmaekelbergh, D.
dc.contributor.author Liljeroth, Peter
dc.date.accessioned 2016-09-08T06:18:20Z
dc.date.issued 2011
dc.identifier.citation Sun , Z X , Hämaläinen , S K , Sainio , J , Lahtinen , J , Vanmaekelbergh , D & Liljeroth , P 2011 , ' Topographic and electronic contrast of the graphene moire on Ir(111) probed by scanning tunneling microscopy and noncontact atomic force microscopy ' , Physical Review B , vol. 83 , no. 8 , 081415 , pp. 1-4 . https://doi.org/10.1103/PhysRevB.83.081415 en
dc.identifier.issn 1098-0121
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: 6f883840-6414-408c-8828-4b67a4d3b4a5
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/topographic-and-electronic-contrast-of-the-graphene-moire-on-ir111-probed-by-scanning-tunneling-microscopy-and-noncontact-atomic-force-microscopy(6f883840-6414-408c-8828-4b67a4d3b4a5).html
dc.identifier.other PURE LINK: http://dx.doi.org/10.1103/PhysRevB.83.081415
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/4244062/PhysRevB.83.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/21846
dc.description.abstract Epitaxial graphene grown on transition-metal surfaces typically exhibits a moiré pattern due to the lattice mismatch between graphene and the underlying metal surface. We use both scanning tunneling microscopy (STM) and atomic force microscopy (AFM) to probe the electronic and topographic contrast of the graphene moiré on the Ir(111) surface. STM topography is influenced by the local density of states close to the Fermi energy and the local tunneling barrier height. Based on our AFM experiments, we observe a moiré corrugation of 35±10 pm, where the graphene-Ir(111) distance is the smallest in the areas where the graphene honeycomb is atop the underlying iridium atoms and larger on the fcc or hcp threefold hollow sites. en
dc.format.extent 1-4
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW B en
dc.relation.ispartofseries Volume 83, issue 8 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Topographic and electronic contrast of the graphene moire on Ir(111) probed by scanning tunneling microscopy and noncontact atomic force microscopy en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics en
dc.subject.keyword epitaxial graphene
dc.subject.keyword films
dc.subject.keyword large-area
dc.subject.keyword scale
dc.subject.keyword surface
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201609083312
dc.identifier.doi 10.1103/PhysRevB.83.081415
dc.type.version publishedVersion


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