Peculiarities of Non-equilibrium Critical Behavior of 3D Diluted Ising Model with Evolution from Low-temperature Initial State

摘要

The Monte Carlo description of aging properties in non-equilibrium critical behavior of 3D site-diluted Ising model is considered with evolution from ordered initial state with wide range of spin concentrations. At first, it was shown, that pinning of domain walls on defects leeds to a sharp change of aging properties in diluted systems in comparison with pure system. Therefore, the asymptotic value of the fluctuation-dissipative ratio X~∞ becomes equal to zero for diluted systems, while for pure system X~∞= 0.784(5).