Monte Carlo simulation of magnetic and thermodynamic properties of hexagonal decorated nanoparticle in a magnetic field

摘要

Abstract By employing Monte Carlo simulation with the metropolis algorithm, the magnetic properties of hexagonal decorated nanoparticle with a mixed-spin (3/2, 1) configuration under an applied magnetic field were analyzed. The influence of exchange couplings and anisotropies on the magnetic and thermodynamic properties of the system were studied. We obtained the various characteristic curves of the magnetization, susceptibility, internal energy, specific heat, and hysteresis loops. The multiple-loop hysteresis behaviors were discovered under certain conditions. Furthermore, we also plotted the variation curve of magnetization with the external magnetic field under the effect of different parameters and found that the magnetization plateaus are based on the exchange couplings, anisotropies, and spin state.