Volume 76, Number 4, November 2006
|Page(s)||561 - 567|
|Published online||13 October 2006|
Ageing in disordered magnets and local scale invariance
Laboratoire de Physique des Matériaux (CNRS UMR 7556), Université Henri Poincaré Nancy I - B.P. 239, F-54506 Vandœuvre lès Nancy Cedex, France
2 Dipartimento di Fisica/INFN - Sezione di Firenze, Università di Firenze I-50019 Sesto Fiorentino, Italy
3 Institut für Theoretische Physik I, Universität Erlangen-Nürnberg D-91058 Erlangen, Germany
4 Department of Physics, Virginia Polytechnic Institute and State University Blacksburg, VA 24061-0435, USA
Accepted: 19 September 2006
The ageing of the bond-disordered two-dimensional Ising model quenched to below its critical point is studied through the two-time autocorrelator and thermoremanent magnetization (TRM). The corresponding ageing exponents are determined. The form of the scaling function of the TRM is well described by the theory of local scale invariance.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 64.60.Ht – Dynamic critical phenomena / 75.10.Nr – Spin-glass and other random models
© EDP Sciences, 2006
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