Electronic transport across linear defects in graphene
Abstract
We investigate the low-energy electronic transport across grain boundaries in graphene ribbons and infinite flakes. Using the recursive Green's function method, we calculate the electronic transmission across different types of grain boundaries in graphene ribbons. We show results for the charge density distribution and the current flow along the ribbon. We study linear defects at various angles with the ribbon direction, as well as overlaps of two monolayer ribbon domains forming a bilayer region. For a class of extended defect lines with periodicity 3, an analytic approach is developed to study transport in infinite flakes. This class of extended grain boundaries is particularly interesting, since the and Dirac points are superposed.
Cite
@article{arxiv.1504.00929,
title = {Electronic transport across linear defects in graphene},
author = {C. J. Páez and J. N. B. Rodrigues and A. L. C. Pereira and N. M. R. Peres},
journal= {arXiv preprint arXiv:1504.00929},
year = {2015}
}
Comments
15 pages, 13 figures