Abstract
In this work, inspiring form of the fullerene-C60 structures, we study the mixed \( X_{30} Y_{30} \) fullerene-like structure and investigate its magnetic properties. In a such a structure, the carbons are assumed to be replaced by magnetic atoms having spin moments σ = 1/2 and S = 1. Firstly, we elaborate the ground-state phase diagrams in different physical parameter planes. In a second stage, we investigate the exchange coupling interaction effects in the absence or presence of both external magnetic and crystal fields. Using the Monte Carlo method, we carried out a study of the system magnetic properties and the thermal behavior of such a system for the ferromagnetic case. It is found that the critical temperature increases when increasing the coupling exchange interactions. On the other hand, the coercive magnetic field increases also when increasing the coupling exchange interactions. However, this physical parameter decreases when increasing the reduced temperature.
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Mhirech, A., Aouini, S., Alaoui-Ismaili, A. et al. Monte Carlo Study of Magnetic Properties of Mixed Spins in a Fullerene X30Y30-Like Structure. J Low Temp Phys 192, 65–74 (2018). https://doi.org/10.1007/s10909-018-1890-7
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DOI: https://doi.org/10.1007/s10909-018-1890-7