Monte Carlo Simulation of Magnetic Properties for Nano-magnetic Particles

摘要

Monte Carlo method was used to investigate the magnetic properties of nano-magnetic spherical panicles with random distribution in space and different size under the external field. The anisotropy energy of particle and dipolar-dipolar interaction between particles were considered. The magnetization behavior, magnetic susceptibility and the internal energy were calculated and analysed, it was found that there was no spontaneous magnetization in this system.