Incompressible States of Dirac Fermions in Graphene with Anisotropic Interactions
Mesoscale and Nanoscale Physics
2015-06-16 v1
Abstract
We report on the properties of incompressible states of Dirac fermions in graphene in the presence of anisotropic interactions and a quantizing magnetic field. We introduce the necessary formalism to incorporate the anisotropy in the system. The incopmpressible state in graphene is found to survive the anisotropy upto a critical value of the anisotropy parameter. The anisotropy also introduces two branches in the collective excitations of the corresponding Laughlin state. It strongly influences the short-range behavior of the pair-correlation functions in the incompressible ground state.
Keywords
Cite
@article{arxiv.1306.2408,
title = {Incompressible States of Dirac Fermions in Graphene with Anisotropic Interactions},
author = {V. M. Apalkov and Tapash Chakraborty},
journal= {arXiv preprint arXiv:1306.2408},
year = {2015}
}
Comments
5 pages, 4 figures