Imaging Localized States in Graphene Nanostructures
arXiv:1005.2024 · doi:10.1103/PhysRevB.82.165445
Abstract
Probing techniques with spatial resolution have the potential to lead to a better understanding of the microscopic physical processes and to novel routes for manipulating nanostructures. We present scanning-gate images of a graphene quantum dot which is coupled to source and drain via two constrictions. We image and locate conductance resonances of the quantum dot in the Coulomb-blockade regime as well as resonances of localized states in the constrictions in real space.
18 pages, 7 figures
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