Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses
Disordered Systems and Neural Networks
2007-05-23 v3 Statistical Mechanics
Abstract
We define modulated replica symmetry breaking (RSB)-schemes which combine tree- and wave-like structures. A modulated scheme and unmodulated RSB are applied at 1-step level to a semiconductor model with antiferromagnetic Korenblit-Shender interaction. By comparison of the free energies we find evidence that a T=0 phase transition in the ferrimagnetic phase leads to a transition between the different RSB-schemes. An embedding factor of Parisi block matrices with sublattice-asymmetrical size is employed as a new variational parameter in the modulated scheme.
Keywords
Cite
@article{arxiv.cond-mat/0106066,
title = {Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses},
author = {R. Oppermann and D. Sherrington and M. Kiselev},
journal= {arXiv preprint arXiv:cond-mat/0106066},
year = {2007}
}
Comments
6 pages, 6 eps-figures