Effective critical behavior of the two-dimensional Ising spin glass with bimodal interactions
Abstract
Monte Carlo data of the two-dimensional Ising spin glass with bimodal interactions are presented with the aim of understanding the low-temperature physics of the model. An analysis of the specific heat, spin-glass susceptibility, finite-size correlation length, and the Binder ratio is performed to try to verify a recent proposal in which for large system sizes and finite but low temperatures the effective critical exponents are identical to the critical exponents of the two-dimensional Ising spin glass with Gaussian interactions. Our results show that with present system sizes the recently proposed scenario in which the two-dimensional Ising spin glass with bimodally distributed interactions is in the same universality class as the model with Gaussian-distributed disorder at low but finite temperatures cannot be reliably proven.
Keywords
Cite
@article{arxiv.cond-mat/0609377,
title = {Effective critical behavior of the two-dimensional Ising spin glass with bimodal interactions},
author = {Helmut G. Katzgraber and Lik Wee Lee and I. A. Campbell},
journal= {arXiv preprint arXiv:cond-mat/0609377},
year = {2007}
}
Comments
10 pages, 10 figures, 2 tables