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Quantum confined electronic states in atomically well-defined graphene nanostructures

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Hämäläinen, Sampsa
dc.contributor.author Sun, Z.
dc.contributor.author Boneschanscher, M.P.
dc.contributor.author Uppstu, Christer
dc.contributor.author Ijäs, M.
dc.contributor.author Harju, A.
dc.contributor.author Vanmaekelbergh, D.
dc.contributor.author Liljeroth, Peter
dc.date.accessioned 2016-09-16T08:25:04Z
dc.date.issued 2011
dc.identifier.citation Hämäläinen , S , Sun , Z , Boneschanscher , M P , Uppstu , C , Ijäs , M , Harju , A , Vanmaekelbergh , D & Liljeroth , P 2011 , ' Quantum confined electronic states in atomically well-defined graphene nanostructures ' , Physical Review Letters , vol. 107 , no. 23 , 236803 , pp. 1-5 . https://doi.org/10.1103/PhysRevLett.107.236803 en
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.identifier.other PURE UUID: 1b26f517-925b-49d4-a08b-f3a26ac239e5
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/1b26f517-925b-49d4-a08b-f3a26ac239e5
dc.identifier.other PURE LINK: http://prl.aps.org/abstract/PRL/v107/i23/e236803
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/4224236/PhysRevLett.107.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/21955
dc.description.abstract Despite the enormous interest in the properties of graphene and the potential of graphene nanostructures in electronic applications, the study of quantum-confined states in atomically well-defined graphene nanostructures remains an experimental challenge. Here, we study graphene quantum dots (GQDs) with well-defined edges in the zigzag direction, grown by chemical vapor deposition on an Ir(111) substrate by low-temperature scanning tunneling microscopy and spectroscopy. We measure the atomic structure and local density of states of individual GQDs as a function of their size and shape in the range from a couple of nanometers up to ca. 20 nm. The results can be quantitatively modeled by a relativistic wave equation and atomistic tight-binding calculations. The observed states are analogous to the solutions of the textbook “particle-in-a-box” problem applied to relativistic massless fermions. en
dc.format.extent 1-5
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW LETTERS en
dc.relation.ispartofseries Volume 107, issue 23 en
dc.rights openAccess en
dc.title Quantum confined electronic states in atomically well-defined graphene nanostructures en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Zhipei Sun Group
dc.contributor.department Department of Applied Physics en
dc.subject.keyword graphene
dc.subject.keyword quantum dot
dc.subject.keyword scanning tunneling microscopy
dc.identifier.urn URN:NBN:fi:aalto-201609163836
dc.identifier.doi 10.1103/PhysRevLett.107.236803
dc.type.version publishedVersion

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