Numerical Studies of the Compressible Ising Spin Glass
Disordered Systems and Neural Networks
2009-11-11 v1
Abstract
We study a two-dimensional compressible Ising spin glass at constant volume. The spin interactions are coupled to the distance between neighboring particles in the Edwards-Anderson model with +/- J interactions. We find that the energy of a given spin configuration is shifted from its incompressible value, E_0, by an amount quadratic in E_0 and proportional to the coupling strength. We then construct a simple model expressed only in terms of spin variables that predicts the existence of a critical value of the coupling above which the spin-glass transition disappears.
Cite
@article{arxiv.cond-mat/0509280,
title = {Numerical Studies of the Compressible Ising Spin Glass},
author = {Adam H. Marshall and Bulbul Chakraborty and Sidney R. Nagel},
journal= {arXiv preprint arXiv:cond-mat/0509280},
year = {2009}
}
Comments
REVTeX, 4 pages, 4 figures. Submitted to Phys. Rev. Lett