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Dynamics of Ordering of Isotropic Magnets

Jayajit Das·Madan Rao
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Abstract

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=T_c, 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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Jayajit Das, Madan Rao. 1999-03-03. Dynamics of Ordering of Isotropic Magnets. https://doi.org/10.1016/s0378-4371(99)00122-3

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