Magnetization Plateaus of a Double Fullerene Core/Shell Like-Nanostructure in an External Magnetic Field: Monte Carlo Study

TL;DR

This study uses Monte Carlo simulations to explore the magnetic properties and magnetization plateaus of a double fullerene core/shell nanostructure under an external magnetic field, revealing diverse magnetic behaviors.

Contribution

It introduces a Monte Carlo approach to analyze the ferrimagnetic behavior and magnetization plateaus of a double sphere core/shell nanostructure based on the Ising model.

Findings

Multiple magnetization curves depending on exchange interactions

Critical and saturation magnetic fields vary with parameters

Identification of different magnetic phases

Abstract

This paper concerns the investigation of the critical (HC) and the saturation (HS) magnetic fields behavior of the studied system as a function of different physical parameters. The Monte Carlo method has been used to study the magnetic properties of a ferrimagnetic behavior of a double fullerene X60 core/shell like-nanostructure, where the symbol X can be assigned to any magnetic atom. Based on the Ising model, we focus our study on a system formed by a double sphere core/shell. The two spheres are containing the spins: $\sigma=\pm 1/2$ in the core are surrounded by the spin $S=\pm 1, 0$ in the shell. Many types of magnetization curves have been found, depending on the competitions among the exchange couplings, the crystal fields and the temperature.