Dynamics of ordering of isotropic magnets

Dasa, Jayajit ; Rao, Madan (1999) Dynamics of ordering of isotropic magnets Physica A: Statistical Mechanics and its Applications, 270 (1-2). pp. 253-262. ISSN 0378-4371

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0378-4371(99)00122-3


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 T = 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.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Heisenberg Magnet; Langevin Equation; Dynamical Scaling; Multiscaling
ID Code:67288
Deposited On:29 Oct 2011 11:59
Last Modified:29 Oct 2011 11:59

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