Driven Heisenberg magnets: Nonequilibrium criticality, spatiotemporal chaos and control

Das, J and Rao, M and Ramaswamy, S (2002) Driven Heisenberg magnets: Nonequilibrium criticality, spatiotemporal chaos and control. In: EPL: Europhysics Letters, 60 (3). pp. 418-424.

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Abstract

We drive a d-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.

Item Type:	Journal Article
Publication:	EPL: Europhysics Letters
Publisher:	EDP Sciences
Additional Information:	Copyright of this article belongs to EDP Sciences.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	20 Jul 2011 07:49
Last Modified:	30 Dec 2018 13:24
URI:	http://eprints.iisc.ac.in/id/eprint/39151

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