Numerical approach to phase transitions in nanoscopic layered systems

Monte Carlo numerical simulations of Ising thin films have been used in an effort to characterize the dimensional crossover of the phase transitions in nanoscopic layered systems with a thickness of a few atoms. In particular, we have determined the behaviour of the critical temperature, of the effective critical exponents and of the crossover temperature. We have also compared our results with experimental data for FeCo using a proper extrapolation.