Study of the Magnetic Properties of a Lieb Core-Shell Nano-Structure: Monte Carlo Simulations

The object of this work is to study the magnetic properties of the Lieb structure based on magnetic particles with core-shell nano-structure. This system is consisting of a ferromagnetic 2D Ising model formed with spins: sigma=1/2, S=1 and q=3/2. Firstly, we examine the magnetic properties of this nanostructure. On the other hand, we study the effect of the coupling exchange interactions and the crystal field. We use the Monte Carlo simulations to investigate also the behavior of the Lieb nano-structure. Finally, we study the influence of the temperature on the critical and compensation behaviors of the studied system. The obtained results are summarized in the phase diagrams.