Dynamics of ordering of isotropic magnets

We study the dynamics of ordering of the nonconserved and conserved Heisenberg magnet. The dynamics consists of two parts — an irreversible dissipation into a heat bath and a reversible precession induced by a torque due to the local molecular field. For quenches both to T=0 and Tc, we show that the torque is irrelevant when the dynamics is nonconserved but relevant when the dynamics is conserved and is governed by a new nontrivial fixed point.

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Year of publication:	1999
Authors:	Das, Jayajit ; Rao, Madan
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 270.1999, 1, p. 253-262
Publisher:	Elsevier
Subject:	Heisenberg magnet \| Langevin equation \| Dynamical scaling \| Multiscaling

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011057815