The effect of anisotropy on phase transitions in graphene
Mesoscale and Nanoscale Physics
2021-06-08 v2 High Energy Physics - Phenomenology
Abstract
We study the effect of anisotropy (strain) on dynamical gap generation in graphene. We work with a low energy effective theory obtained from a tight-binding Hamiltonian expanded around the Dirac points in momentum space. We use a non-perturbative Schwinger-Dyson approach and calculate a coupled set of five momentum dependent dressing functions. Our results show that the critical coupling depends only weakly on the anisotropy parameter, and increases with greater anisotropy.
Keywords
Cite
@article{arxiv.2006.04790,
title = {The effect of anisotropy on phase transitions in graphene},
author = {M. E. Carrington and A. R. Frey and B. A. Meggison},
journal= {arXiv preprint arXiv:2006.04790},
year = {2021}
}