Europhys. Lett.
Volume 69, Number 4, February 2005
Page(s) 524 - 530
Section General
Published online 14 January 2005
Europhys. Lett., 69 (4), pp. 524-530 (2005)
DOI: 10.1209/epl/i2004-10381-4

Ageing and dynamical scaling in the critical Ising spin glass

M. 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.

© EDP Sciences 2005