Aging in coarsening diluted ferromagnets

摘要: We comprehensively study non-equilibrium relaxation and aging processes in the two-dimensional random-site Ising model through numerical simulations. discuss dynamical correlation length as well scaling functions of various two-times quantities a function temperature degree dilution. For already modest values $L$ deviations from simple algebraic growth, $L(t) \sim t^{1/z}$, are observed. When taking this non-algebraic growth properly into account, behavior autocorrelation is found. This stark contrast to earlier studies where, based on assumption superaging scenario was postulated for disordered ferromagnets. also space-time time integrated linear response find again agreement with aging. Finally, we briefly possibility superuniversality properties space- time-dependent quantities.