Nonequilibrium steady states of the isotropic classical magnet
Soft Condensed Matter
2007-05-23 v1
Abstract
We drive a d-dimensional Heisenberg magnet using a spatially anisotropic current of mobile particles or heat. The continuum Langevin equation is analyzed using a dynamical renormalization group, stability analysis and numerical simulations. We discover a rich steady-state phase diagram, including a critical point in a new nonequilibrium universality class, and a spatiotemporally chaotic phase. The latter may be `controlled' in a robust manner to target spatially periodic steady states with helical order. We discuss several physical realizations of this model and make definite predictions which could be tested in experimental or model lattice systems.
Keywords
Cite
@article{arxiv.cond-mat/0404071,
title = {Nonequilibrium steady states of the isotropic classical magnet},
author = {Jayajit Das and Madan Rao and Sriram Ramaswamy},
journal= {arXiv preprint arXiv:cond-mat/0404071},
year = {2007}
}
Comments
submitted to Physical Review E