Abstract
The equilibrium and non-equilibrium properties of a two-dimensional Ising-like spin system with both ferromagnetic exchange and long-range dipolar interactions are studied. Implementing the Ewald Sums (ES) for the calculation of the dipolar interaction we reproduced the results of the literature concerning the equilibrium-phase diagram and the stability of the phases. We also investigated the aging regime and the Fluctuation–Dissipation Theorem (FDT) violations in the system and we showed that, despite usual claims in the literature, the dynamical behavior of the system is independent of the strength of the dipolar interaction, at least in the zone of the phase diagram under study.
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