Dynamical breakdown of the Ising spin-glass order under a magnetic field
Disordered Systems and Neural Networks
2009-11-10 v2
Abstract
The dynamical magnetic properties of an Ising spin glass FeMnTiO are studied under various magnetic fields. Having determined the temperature and static field dependent relaxation time from ac magnetization measurements under a dc bias field by a general method, we first demonstrate that these data provide evidence for a spin-glass (SG) phase transition only in zero field. We next argue that the data of finite can be well interpreted by the droplet theory which predicts the absence of a SG phase transition in finite fields.
Cite
@article{arxiv.cond-mat/0411291,
title = {Dynamical breakdown of the Ising spin-glass order under a magnetic field},
author = {P. E. Jönsson and H. Takayama and H. Aruga Katori and A. Ito},
journal= {arXiv preprint arXiv:cond-mat/0411291},
year = {2009}
}
Comments
4 pages, 5 figures