First Order Transition in Two Dimensional Coulomb Glass
Abstract
We have studied the ground states of two dimensional lattice model of Coulomb Glass via Monte Carlo annealing. Our results show a possibility of existence of a critical disorder (Wc) below which the system is in the charge ordered phase and above it the system is in the disordered phase. We have used finite size scaling to calculate Wc = 0.2413, the critical exponent of magnetization {\beta} = 0 indicating discontinuity in magnetization and the critical exponent of correlation length {\nu} = 1.0. The distribution of staggered magnetization for different disorder strengths shows a three peak structure. We thus predict that two dimensional Coulomb Glass shows a first order transition at T=0.
Keywords
Cite
@article{arxiv.1612.06607,
title = {First Order Transition in Two Dimensional Coulomb Glass},
author = {Preeti Bhandari and Vikas Malik},
journal= {arXiv preprint arXiv:1612.06607},
year = {2017}
}
Comments
6 pages, 5 figures, Accepted for publication in IOP Conference Series: Journal of Physics