Imaging Localized States in Graphene Nanostructures

S. Schnez, J. Güttinger, M. Huefner, C. Stampfer, K. Ensslin, T. Ihn

Published 2010-05-12Version 1

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.