Study on the magnetic and hysteresis behaviors in a bilayer graphene-like ring with edge decorated

Abstract

We employed the effective-field theory with correlations to study the hysteresis and thermodynamic properties of a bilayer graphene-like ring with edge decorated by a ferrimagnetic mixed-spin (2, 5/2) Ising model. The temperature dependence of magnetization, susceptibility, internal energy and specific heat of the system are illustrated in detail. As well, we depict the hysteresis behaviors and phase diagram with various parameters. The results showed the significance of the anisotropy, the magnetic field as well as the exchange coupling in controlling hysteresis behaviors and various magnetic quantities. The possibility of rich multiple-loop hysteresis and reentrant behaviors are found, sensitive to the competition among the physical parameters.

Exploring thermodynamic characteristics and magnetocaloric effect of an edge-decorated Ising multilayer nanoparticle with graphene-like structure

“…For example, D. C. Ma, studied the magnetic properties of the edge-modified kekulene-like nanostructure, and reported the multi-peak behavior of the system caused by abundant excited states near the ground state [34]. K L Shi et al further studied the double-layer edge-modified kekulene-like nanostructure, and obtained rich multiple-loop hysteresis and reentrant behaviors [35]. A B Cahaya et al explored the magnetic properties of a Phenanthrene-like biplane with Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction using MC simulation, and discussed the effect of crystal field on the magnetic properties of the system [36].…”

Investigating the magnetic and hysteretic properties of graphyne-based nanostructures: a comparative study of shape effects on critical temperatures, coercivity, and remanence

“…On the other hand, theoretical studies on the magnetic properties of various graphene structures, including nanographene, bilayer or trilayer graphene, and graphyne have been conducted using different calculation techniques such as the mean-field approximation (MFA) [28] and the effective field theory (EFT) [29][30][31][32][33][34][35][36][37], as well as Monte Carlo simulations (MCS) [38][39][40][41][42][43][44][45][46][47][48][49]. In this context, the magnetic properties of graphyne are investigated by the first-principles calculations [18,23,50,51].…”

Dynamic magnetic behaviors and magnetocaloric effect of the Kagome lattice: Monte Carlo simulations

“…In addition, MC simulations allow the study of the magnetic behaviors and magnetocaloric effects of nano-systems [27][28][29][30]. In our previous study, we successfully described the magnetic and thermodynamic properties of a nanosystem using the Ising model [31][32][33]. Moreover, dynamic phase transitions and hysteresis loop behaviors have raised significant interest [34,35].…”