Tilted potential induced coupling of localized states in a graphene nanoconstriction

M. R. Connolly; K. L. Chiu; A. Lombardo; A. Fasoli; A. C. Ferrari; D. Anderson; G. A. C. Jones; C. G. Smith

doi:10.1103/PhysRevB.83.115441

Tilted potential induced coupling of localized states in a graphene nanoconstriction

Mesoscale and Nanoscale Physics 2012-05-16 v2 Materials Science

Authors: M. R. Connolly , K. L. Chiu , A. Lombardo , A. Fasoli , A. C. Ferrari , D. Anderson , G. A. C. Jones , C. G. Smith

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Abstract

We use the charged tip of a low temperature scanning probe microscope to perturb the transport through a graphene nanoconstriction. Maps of the conductance as a function of tip position display concentric halos, and by following the expansion of the halos with back-gate voltage we are able to identify an elongated domain over the nanoconstriction where they originate. Amplitude modulations of the transmission resonances are correlated with the gradient of the tip-induced potential and we analyze this in terms of modified coupling between localized states.

Keywords

graphene nanoconstriction localized states scanning probe microscope tip-induced potential coupling

Cite

@article{arxiv.1009.1103,
  title  = {Tilted potential induced coupling of localized states in a graphene nanoconstriction},
  author = {M. R. Connolly and K. L. Chiu and A. Lombardo and A. Fasoli and A. C. Ferrari and D. Anderson and G. A. C. Jones and C. G. Smith},
  journal= {arXiv preprint arXiv:1009.1103},
  year   = {2012}
}

Tilted potential induced coupling of localized states in a graphene nanoconstriction

Abstract

Keywords

Cite

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