Ageing and dynamical scaling in the critical Ising spin glassM. Henkel1 and M. Pleimling2
1 Laboratoire de Physique des Matériaux (CNRS UMR 7556), Université Henri Poincaré Nancy I - B.P. 239, F-54506 Vandoeuvre lès Nancy Cedex, France
2 Institut für Theoretische Physik I, Universität Erlangen-Nürnberg D-91058 Erlangen, Germany
received 5 October 2004; accepted in final form 10 December 2004
published online 14 January 2005
The non-equilibrium ageing behaviour of the three-dimensional and four-dimensional critical Ising spin glass is studied for both binary and Gaussian disorder. The same phenomenology of the time-dependent scaling as in non-disordered magnets is found but the non-equilibrium exponents and the universal limit fluctuation-dissipation ratio depend on the distribution of the coupling constants.
05.70.Ln - Nonequilibrium and irreversible thermodynamics.
75.50.Lk - Spin glasses and other random magnets.
64.60.Ht - Dynamic critical phenomena.
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