Send to:

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2011 Oct 7;107(15):156601. Epub 2011 Oct 5.

Theory of 2D transport in graphene for correlated disorder.

Author information

  • 1Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.


We theoretically revisit graphene transport properties as a function of carrier density, taking into account possible correlations in the spatial distribution of the Coulomb impurity disorder in the environment. We find that the charged impurity correlations give rise to a density-dependent graphene conductivity, which agrees well qualitatively with the existing experimental data. We also find, quite unexpectedly, that the conductivity could increase with increasing impurity density if there is sufficient interimpurity correlation present in the system. In particular, the linearity (sublinearity) of graphene conductivity at lower (higher) gate voltage is naturally explained as arising solely from impurity correlation effects in the Coulomb disorder.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk