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Dynamics of ordering of isotropic magnets

Author

Listed:
  • Das, Jayajit
  • Rao, Madan

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 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.

Suggested Citation

  • Das, Jayajit & Rao, Madan, 1999. "Dynamics of ordering of isotropic magnets," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 270(1), pages 253-262.
    • Handle: RePEc:eee:phsmap:v:270:y:1999:i:1:p:253-262
    DOI: 10.1016/S0378-4371(99)00122-3
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