Critical and compensation behavior of a mixed spin-3/2 and spin-5/2 Ising ferrimagnetic system in a graphene layer

Alzate-Cardona, J.D.; Sabogal-Suárez, D.; Restrepo-Parra, E.

doi:10.1016/j.jmmm.2017.01.004

Cited by 63 publications

(10 citation statements)

References 28 publications

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“…However, above J max cc , T c begins to increase proportional to J cc as observed before. In summary, for a constant value of J cc , compensation point only can exist if J ss > J min ss and, for a constant value of J ss , compensation point only can appear if J cc < J max cc , as it was observed in previous works [30,33,34]. Figure 6(a) shows the temperature dependence of |M| for J ss = 2.0 and J cc = 0.2 for different positive values of K v .…”

Section: Resultssupporting

confidence: 68%

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Critical and compensation behavior of a mixed spin-5/2 and spin-3/2 Ising antiferromagnetic system in a core/shell nanowire

Alzate-Cardona

Barrero-Moreno

2017

J. Phys.: Condens. Matter

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In this work, Monte Carlo simulations based on metropolis algorithm were performed to study the critical and compensation temperatures of a core-shell nanowire with spins [Formula: see text] and [Formula: see text], respectively, considering an Ising antiferromagnetic system. The influence of nearest neighbors exchange interactions and crystal field anisotropy on the critical and compensation behaviors of the system has been analyzed. The effects of the nanowire height in the critical and compensation temperatures were evaluated. The results show that, for a system with given values of exchange interaction constants and crystal field anisotropy, a compensation point only appears if two requirements are satisfied. First, the weight of the core magnetization in the total magnetization must be greater than the weight of the shell magnetization at zero temperature. And second, the exchange constant of shell ions must be greater than a certain value. This value is, at the same time, greater than the exchange constant of core ions. The critical and compensation temperatures are very sensitive to variations in the exchange constant of the shell ions and core ions, respectively, while the crystal field anisotropy affects both temperatures.

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Section: Resultssupporting

confidence: 68%

“…A compensation temperature is observed when J cc = 1.0, J ss = 5.0 and K v = 0.0. These values were chosen because, from previous works, the compensation effect was identified under the condition J ss > J cc [30]. It is possible to observe that, as h increases, T c and T comp saturate.…”

Section: Resultsmentioning

confidence: 99%

Critical and compensation behavior of a mixed spin-5/2 and spin-3/2 Ising antiferromagnetic system in a core/shell nanowire

Alzate-Cardona

Barrero-Moreno

2017

J. Phys.: Condens. Matter

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“…The layered magnetic materials, apt for compensation phenomenon, being economically cheap compared to rare-earth metals may become a strong candidate for the MCE. It would be interesting to study the behaviours of reduced residual magnetisation and the absolute difference in the critical and compensation temperatures in the case of mixed spin [54,55] systems.…”

Section: Discussionmentioning

confidence: 99%

Thermodynamic behaviour of magnetocaloric quantities in spin-1/2 Ising square trilayer

Chandra

2020

Preprint

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We have studied a spin-1/2, Ising trilayered ferrimagnetic system on square Bravais lattice, employing Monte-Carlo simulation with single spin-flip Metropolis algorithm. The bulk of such a system is formed by three layers, each of which is composed completely either by A or B type of atoms, resulting in two distinct compositions: ABA and AAB and two different types of magnetic interactions: ferromagnetic between like atoms and antiferromagnetic between unlike atoms. Variation of relative interaction strengths in the Hamiltonian, for a range of values, leads to the shift of compensation point and critical point and changes in the magnitude of reduced residual magnetisation. We have tried to put forward probable mathematical forms of dependences of the reduced residual magnetisation and temperature interval between the compensation and critical points on controlling parameters in absence of applied magnetic field and have obtained phase diagrams for both types of configurations from these relations.

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“…Recently, several methods have been applied to the examination of these systems, such as effective field theory (EFT), [19][20][21] mean field theory (MFT), [22][23][24] Green's function method, [25] and Monte Carlo simulation (MCS). [24,[26][27][28][29] These studies are of great significance not only for the theoretical study of ferrimagnetic nanowires but also for experimental and practical applications. Indeed, Wang et al [30] studied the influence of single-ion anisotropy on the critical and hysteresis behavior of a mixed-spin (1, 3/2) cylindrical nanowire using Monte Carlo simulation.…”

Section: Introductionmentioning

confidence: 99%

Single‐Ion Anisotropy Effect on the Critical and Hysteresis Behaviors of a Mixed‐Spin (1, 3/2) Square Ising Nanowire

Jalal,

Saadi,

Hasnaoui

et al. 2023

Physica Status Solidi (b)

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The effect of single‐ion anisotropy is investigated on a mixed‐spin (1, 3/2) square Ising nanowire with square ferromagnetic shell and negative core–shell exchange coupling using Monte Carlo simulation. Depending on the Hamiltonian parameters, three different topologies of the phase diagram in the (anisotropy, temperature) plane are found. The tricritical point appears for and effects. For influence of , there is no tricritical point in the phase diagram. The first‐order lines and critical endpoints are also obtained. Some important phenomena such as compensation behavior and rich variety of hysteresis loops are found. The results can be compared with other works, in particular on the nanowire with core–shell structure.

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Critical and compensation behavior of a mixed spin-3/2 and spin-5/2 Ising ferrimagnetic system in a graphene layer

Cited by 63 publications

References 28 publications

Critical and compensation behavior of a mixed spin-5/2 and spin-3/2 Ising antiferromagnetic system in a core/shell nanowire

Critical and compensation behavior of a mixed spin-5/2 and spin-3/2 Ising antiferromagnetic system in a core/shell nanowire

Thermodynamic behaviour of magnetocaloric quantities in spin-1/2 Ising square trilayer

Single‐Ion Anisotropy Effect on the Critical and Hysteresis Behaviors of a Mixed‐Spin (1, 3/2) Square Ising Nanowire

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