Hysteresis and Double‐Spin Compensation Behaviors in a Ferro‐Ferrimagnetic Model of High Half‐Integer Spins

• Published in: physica status solidi (b) 2023-04, Vol.260 (4), p.n/a
• Main Authors: Madera, Julio Cesar, De La Espriella, Nicolás, Burgos, Rhonald
• Format: Article
• Language: English
• Subjects: discontinuities; double-compensation temperatures; ferro-ferrimagnetic model; hysteresis behavior
• ISSN: 0370-1972; 1521-3951
• DOI: 10.1002/pssb.202200517

Herein, thermomagnetic properties of a ferro‐ferrimagnetic system with magnetic moments of values Q = ± 7 / 2 , ± 5 / 2 , ± 3 / 2 , ± 1 / 2 , and S = ± 3 / 2 , ± 1 / 2 alternating on a square lattice, are investigated. These properties are framed in hysteresis, double‐spin compensation, and discontinuous behavior of the system. Through Monte Carlo simulations, the temperature dependence of the magnetization and magnetic susceptibility of the system for zero and nonzero values of an applied external magnetic field are analyzed. The hysteresis behavior of the model for different temperature values is also studied. It is found that the system experiences double‐spin compensation and multiple hysteresis loops when it is subjected to different values of single‐ion anisotropy and magnetic fields. The increase in the strength of the magnetic field generates discontinuities in the magnetization, and the inversion of its polarity destroys the compensation points. Finally, a phase diagram is presented with the critical, spin compensation, and discontinuous temperatures in terms of the magnetic and anisotropic fields for the ferri‐ and ferromagnetic cases. The results are compared with a recent investigation of this system that does not include the antiferromagnetic next‐nearest‐neighbor interactions, which influences the magnetic behavior of the model. By means of Monte Carlo simulations, the effect of exchange interactions, with crystal and external fields, on the hysteresis and double‐compensation temperature of a ferro‐ferrimagnetic (3/2–7/2)‐spin system, configured in a square lattice, is investigated. The results are compared with a recent investigation that does not include the antiferromagnetic next‐nearest‐neighbor interactions, which influences the magnetic behavior of the model.