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Dresden 2006 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 29: Glass II (joint session with DF)

DY 29.3: Vortrag

Dienstag, 28. März 2006, 15:10–15:30, M{\"U}L Elch

Dynamic critical behaviour in Ising spin glasses — •Michel Pleimling1, Malte Henkel2, and Ian Campbell31Institut für Theoretische Physik I, Universität Erlangen-Nürnberg, Germany — 2Laboratoire de Physique des Matériaux, Université Henri Poincaré Nancy I, France — 3Laboratoire des Colloïdes, Verres et Nanomatériaux, Université Montpellier II, France

The non-equilibrium ageing behaviour of critical Ising spin glasses with Bimodal, Gaussian, and Laplacian interaction distributions is studied numerically in three and four dimensions. The same phenomenology of the time-dependent scaling as in non-disordered magnets is found. Our data strongly indicate that the values of the non-equilibrium exponents and of the critical limit fluctuation-dissipation ratio depend on the distribution of the coupling constants.

[1] M. Pleimling and M. Henkel, Europhys. Lett. 69, 524 (2005)

[2] M. Pleimling and I.A. Campbell, to appear in Phys. Rev. B (cond-mat/0506795)

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