Nonequilibrium Dynamics and Aging in the Three--Dimensional Ising Spin Glass Model

Details Nonequilibrium Dynamics and Aging in the Three--Dimensional Ising Spin Glass Model Nonequilibrium Dynamics and Aging in the Three--Dimensional Ising Spin Glass Model

1993-03-26

arxiv.org/abs/cond-mat/9303048v1

J.Phys. A 26 (1993) L615

Physics

Condensed Matter

Revtex, 11 pages + 4 figures (included as Latex-files)

Scientific paper

10.1088/0305-4470/26/15/001

The low temperature dynamics of the three dimensional Ising spin glass in zero field with a discrete bond distribution is investigated via MC simulations. The thermoremanent magnetization is found to decay algebraically and the temperature dependent exponents agree very well with the experimentally determined values. The nonequilibrium autocorrelation function $C(t,t_w)$ shows a crossover at the waiting (or {\em aging}) time $t_w$ from algebraic {\em quasi-equilibrium} decay for times $t$$\ll$$t_w$ to another, faster algebraic decay for $t$$\gg$$t_w$ with an exponent similar to one for the remanent magnetization.

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