Domain kinetics simulations in 3D Ising model

In this work we extend our previous simulations to study the magnetization processes and the effect of temperature on the domain kinetics. We have carried out extensive Monte Carlo simulations with different simple cubic lattice samples of size 20×20×20. If the simulation is allowed to come to equilibrium at high temperature and then thermally quenched by reducing T to well below Tc, domains are frequently formed. In zero field, such domains may persist or may vanish with time. In general, the results obtained shows that small closed shapes are not stable, but structures involving lamellae or rectangular prisms of one sign of spins average embedded in a matrix of the opposite spin are stable indefinitely at sufficiently low temperatures.