Critical and compensation behaviors of a mixed spin (5/2,2) Ising system on a graphene layer

Feraoun, A.; Amraoui, S.; Kerouad, M.

doi:10.1016/j.cjph.2018.12.024

Cited by 27 publications

(5 citation statements)

References 19 publications

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“…In remarkable, Ising model as a classical model has been successfully used to solve the problems of two-dimensional and three-dimensional theoretical model of statistical physics [24,25]. Various mixed-spin Ising models have been developed to study the intersting magnetic characteristics of graphene-like few-layer systems by means of numerical methods such as effectivefield theory (EFT) [26,27], and Monte Carlo (MC) simulation [28][29][30]. The above studies have found that the exchange couplings and the external magnetic field have important impacts on the magnetic properties of the graphene-like few-layer systems.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and magnetocaloric properties of a triple-layer graphene-like structure

Sun¹,

Lv²,

Wang³

et al. 2021

Phys. Scr.

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Thermodynamic and magnetocaloric properties of the triple-layer graphene-like structure with mixed spin-3/2 and spin-5/2 have been reported by applying the Monte Carlo simulation. We found that for such system, various exchange couplings or external magnetic field affect greatly the magnetic behaviors and magnetocaloric effect. For example, the value of magnetization increases and the system becomes more stable with increasing the exchange couplings or external magnetic field. Besides, there exists a peak in each magnetic entropy change curve near the critical temperature. The value of it increases with decreasing exchange couplings or increasing the external magnetic field. In addition, when the exchange couplings decreases or the external magnetic field increases, the relative cooling power enhances. Finally, the hysteresis behaviors have also been investigated in detail.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic and magnetocaloric properties of a triple-layer graphene-like structure

Sun¹,

Lv²,

Wang³

et al. 2021

Phys. Scr.

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“…As a hot topic in the theoretical research of nanomaterials, mixed-spin systems have aroused wide concern and they have been used to study bimetallic molecular systems based magnetic materials. Recently, researchers have investigated the diverse mixed-spin Ising models, such as the mixed-spin (1/2, 1) nanowire [14], mixed-spin (2, 5/2) zigzag AFe II Fe III (C 2 O 4 ) 3 nanoribbons [15], mixed-spin (5/2, 2) Kekulene structure [16], mixed-spin (1, 3/2) chain with inhomogeneous crystal-field anisotropy [17], mixed-spin (3/2, 2) Ising system with two alternative layers [18], mixedspin (2, 5/2) Ising system on a graphene layer [19], mixedspin (3, 7/2) bilayer decorated graphene structure [20] and so on. Specially, the mixed-spin (3/2, 5/2) Ising model has drawn great attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Dynamic magnetic properties of Ising graphene-like monolayer

Sun

Wang

2020

Commun. Theor. Phys.

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Dynamic magnetic properties of the mixed-spin (3/2, 5/2) Ising graphene-like monolayer in an oscillating magnetic field are studied by means of Monte Carlo simulation. The effects of Hamiltonian parameters such as crystal field and time-dependent oscillating magnetic field on the dynamic order parameter, susceptibility and internal energy of the system are well presented and explained. Moreover, much attention has also been dedicated to the phase diagrams with different parameters in order to better comprehend the impacts of these parameters on the critical temperature. Our results reveal that the crystal fields of two sublattices have similar effects on the critical temperature, but the bias field and amplitude of oscillating field have opposite effects on it. We hope that our research can be of guiding significance to the theoretical and experimental studies of graphene-like monolayer.

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“…The Ising model has been widely used as a classic model to describe various two-and three-dimensional magnetic materials [13][14][15]. For example, using various numerical methods such as effective-field theory (EFT) and Monte Carlo (MC) simulation, the Ising model can be used to understand in detail the magnetism of layered graphene structures [16][17][18]. Generally, intrinsic graphene does show magnetism, but hybrid graphene may be made magnetic by various treatments such as heteroatom doping [19], hydrogenation [20] and nitrogen-substituted molecules [21].…”

Section: Introductionmentioning

confidence: 99%

Compensation temperatures and hysteresis behaviors of a graphene-like trilayer

An,

Liang,

Wang

et al. 2024

Commun. Theor. Phys.

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This work focuses on the ground-state phase diagram, the compensation temperatures and critical behaviors of a ferrimagnetic graphene-like trilayer induced by crystal fields and exchange couplings. The simulation results show that a negative decrease in crystal field or an increase in exchange coupling can increase critical temperature. More importantly, the M curve with double compensation temperatures can be observed, which is not predicted in the Néel theory. The remarkable compensation phenomenon has potential application value in the field of magnetic recording.

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Critical and compensation behaviors of a mixed spin (5/2,2) Ising system on a graphene layer

Cited by 27 publications

References 19 publications

Thermodynamic and magnetocaloric properties of a triple-layer graphene-like structure

Thermodynamic and magnetocaloric properties of a triple-layer graphene-like structure

Dynamic magnetic properties of Ising graphene-like monolayer

Compensation temperatures and hysteresis behaviors of a graphene-like trilayer

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