Geometry-dependent conductance oscillations in graphene quantum dots

Liang Huang, Rui Yang, Ying-Cheng Lai

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Utilizing rectangular graphene quantum dots with zigzag horizontal boundaries as a paradigm, we find that the conductance of the dots can exhibit significant oscillations with the position of the leads. The oscillation patterns are a result of quantum interference determined by the band structure of the underlying graphene nanoribbon. In particular, the power spectrum of the conductance variation concentrates on a selective set of bands of the ribbon. The computational results are substantiated by a heuristic theory that provides selection rules for the concentration on the specific dispersion bands.

Original languageEnglish (US)
Article number58003
Issue number5
StatePublished - Jun 2011

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Geometry-dependent conductance oscillations in graphene quantum dots'. Together they form a unique fingerprint.

Cite this