Magnetic and thermodynamic properties of a ferrimagnetic nanowire with spin-1 core and spin-3/2 shell structure: a Monte Carlo simulation.

In this work, the Monte Carlo simulation based on the heat bath algorithm is used to study the phase diagrams of a ferrimagnetic square nanowire with core/shell structure. We examined the ground-state phase diagrams of the square nanowire that were determined for various parameters. The resulting diagrams are very rich, and they also display all of the most stable configurations; furthermore, we have studied the effect of the crystal fields and exchange interactions on the critical and compensation behaviors ( T c and T comp ) of the system. The magnetization profiles ( M T , M s and M c ), susceptibility χ T , internal energy E T and specific heat C v as a function of the temperature are investigated. Moreover, by varying the system parameters, the phase diagrams of the square nanowire are studied in detail. It is found that the system presents rich phase transitions such as the second-and first-order phase transitions, as well as well as the compensation and tricritical points. [ABSTRACT FROM AUTHOR]