Abstract
The results of a numerical Monte Carlo study of features of nonequilibrium critical behavior in a two-dimensional pure and structurally disordered Ising models are presented with realization of evolution from different initial states within the wide range of spin concentrations p = 1.0, 0.95, 0.9, 0.85, 0.8, 0.75, and 0.7. Analysis of the two-time dependences of the autocorrelation function and dynamic susceptibility revealed a substantial influence of the initial states on the aging effects. The violation of the fluctuation-dissipation theorem is studied, and the asymptotic values of the fluctuation-dissipation ratio are calculated.
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