Toward theory of quantum Hall effect in graphene
Mesoscale and Nanoscale Physics
2008-11-26 v2 High Energy Physics - Theory
Abstract
We analyze a gap equation for the propagator of Dirac quasiparticles and conclude that in graphene in a magnetic field, the order parameters connected with the quantum Hall ferromagnetism dynamics and those connected with the magnetic catalysis dynamics necessarily coexist (the latter have the form of Dirac masses and correspond to excitonic condensates). This feature of graphene could lead to important consequences, in particular, for the existence of gapless edge states. Solutions of the gap equation corresponding to recently experimentally discovered novel plateaus in graphene in strong magnetic fields are described.
Cite
@article{arxiv.0710.3527,
title = {Toward theory of quantum Hall effect in graphene},
author = {E. V. Gorbar and V. P. Gusynin and V. A. Miransky},
journal= {arXiv preprint arXiv:0710.3527},
year = {2008}
}
Comments
5 pages, no figures, v.2: to match published version