Driven Heisenberg Magnets: Nonequilibrium Criticality, Spatiotemporal Chaos and Control
Statistical Mechanics
2009-11-07 v2 Soft Condensed Matter
Chaotic Dynamics
Abstract
We drive a -dimensional Heisenberg magnet using an anisotropic current. The continuum Langevin equation is analysed using a dynamical renormalization group 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.
Keywords
Cite
@article{arxiv.cond-mat/0104566,
title = {Driven Heisenberg Magnets: Nonequilibrium Criticality, Spatiotemporal Chaos and Control},
author = {Jayajit Das and Madan Rao and Sriram Ramaswamy},
journal= {arXiv preprint arXiv:cond-mat/0104566},
year = {2009}
}
Comments
7 pages, 2 figures. Published in Euro. Phys. Lett