Magnetic properties of a fullerene-like X20 structure with embedded metal atom

Monte Carlo simulation has been used to study magnetic and thermodynamic properties of a ferrimagnetic mixed-spin (1, 3/2) Ising fullerene-like X-20 structure with embedded metal atom. Under the influence of the anisotropy and the concentration of surface shell atom, the system tends to show the multiple stable saturation values of magnetization (M = 0.91, 0.85, 0.77, 0.64, 0.50 and 0.023) and the values of intermediate metastable magnetization (M = 0.88, 0.76 and 0.60) at zero temperature. The blocking temperature T ( B ) becomes higher by decreasing the anisotropies ( divide D ( C ) divide , divide D ( S ) divide ), or increasing the exchange coupling divide J ( CS ) divide , the magnetic field h and the concentration of surface shell atom P ( S ). Some interesting phenomena have been found such as the double-loop hysteresis behavior for the relatively large values of divide D ( S ) divide (>= 2.0), originating from the competition between different physical parameters.

Automated summary

Monte Carlo simulation was used to study the magnetic and thermodynamic properties of a ferrimagnetic mixed-spin (1, 3/2) Ising fullerene-like X-20 structure with embedded metal atom. The system exhibited multiple stable saturation values of magnetization and intermediate metastable values at zero temperature. The blocking temperature increased with decreasing anisotropies or increasing exchange coupling, magnetic field, and concentration of surface shell atom. Additionally, interesting phenomena such as double-loop hysteresis behavior were observed, resulting from the competition between different physical parameters.