Phase diagrams and critical behaviours of the mixed spin-5/2 and spin-7/2 Ising system

Karimou, M.; Yessoufou, R.; Ngantso, G. Dimitri; Hontinfinde, F.; Albayrak, Erhan

doi:10.5488/cmp.22.33601

Cited by 9 publications

(4 citation statements)

References 42 publications

(56 reference statements)

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“…This has been shown in several experimental studies [27][28][29]. On the theoretical side, a variety of sophistical techniques has been used in order to examine the effects of the longitudinal magnetic field on the magnetic quantities of a mixed-spin Ising system, such as effective-field theory with correlations [30][31][32][33][34], recursion relations on the Bethe lattice [35,36], cluster variation method [37], differential operator technique [38], mean-field theory [39] and Monte Carlo simulation [40].…”

Section: Introductionmentioning

confidence: 95%

Phase diagrams of the ferrimagnetic mixed spin-1/2 and spin-5/2 Ising model under a longitudinal magnetic field

et al. 2019

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The ferrimagnetic mixed spin-1/2 and spin-5/2 Ising model with a crystal field interaction in the absence and presence of a longitudinal magnetic field on a three-dimensional cubic lattice is studied within the framework both of the mean-field approximation (MFA) and Monte Carlo simulation (MCS). Using the MFA, we have shown the phase diagram of the model for zero magnetic field in the (anisotropy, temperature) plane in which the system exhibits firstand second-order phase transitions and critical end-points. Also, we have used the standard MCS to confirm the previous results; we have presented the temperature dependence of the sublattice and total magnetizations for different values of anisotropy in order to determine the phase diagram of the model in the absence of a longitudinal magnetic field. In addition, the influence of this last field on the magnetic properties of the model is investigated and discussed.

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Section: Introductionmentioning

confidence: 95%

Phase diagrams of the ferrimagnetic mixed spin-1/2 and spin-5/2 Ising model under a longitudinal magnetic field

et al. 2019

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“…For example, properties such as internal energy, specific heat, and blocking temperatures of nanographene bilayers have been modeled by the 3/2-5/2 spin combination; [22,23] multicompensation phenomena have been found in many mixed systems. [24] The mixed spin-(5/2,7/2) structure presents some interesting thermomagnetic phenomena with useful technological applications, as evidenced by the works of Bahlagui et al, [25,26] Karimou et al, [27,28] and De La Espriella et al [29] Previous works on high-order spins models indicate that these systems present very rich magnetic behavior, such as multiloops hysteresis, superparamagnetism, that have been observed in real materials. [30,31] Most of these works have been performed with Hamiltonians that include antiferromagnetic (AF) interactions between nearest neighbors, crystal and external fields; [26] little is known about the added effect of next-nearest neighbor interactions that certainly are present and in many cases can be quite relevant as we will see.…”

Section: Introductionmentioning

confidence: 97%

“…For example, properties such as internal energy, specific heat, and blocking temperatures of nanographene bilayers have been modeled by the 3/2–5/2 spin combination; [ 22,23 ] multicompensation phenomena have been found in many mixed systems. [ 24 ] The mixed spin‐(5/2,7/2) structure presents some interesting thermomagnetic phenomena with useful technological applications, as evidenced by the works of Bahlagui et al, [ 25,26 ] Karimou et al, [ 27,28 ] and De La Espriella et al [ 29 ]…”

Section: Introductionmentioning

confidence: 99%

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Espriella

Karimou

Buendı́a

2021

Physica Status Solidi (b)

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Mean field and Monte Carlo simulations techniques are applied to study the behavior of a mixed Ising spin model in a square lattice where spins 7/2 are located in alternating sites with spins 3/2. There is an antiferromagnetic interaction between nearest neighbors, ferromagnetic interactions between next-nearest neighbors, crystal fields, and a magnetic external field. The role of the different interactions in the magnetic behavior of the system is explored. It is found that depending on the combination of parameters in the Hamiltonian this system presents multiple hysteresis loops, exchange bias, compensation temperatures, and discontinuous magnetizations. The results are compared with previous studies that do not include the ferromagnetic next-nearest neighbor interactions and found that they can have a strong effect in the magnetic behavior of the system.

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“…In recent years, a lot of interest has been centered on the analysis of magnetic systems containing 7/2 spins, due to the richness of magnetic phenomena and their diverse applications in different technological areas. [ 50–53 ] Likewise, the contributions of Clymton and Mart through systems with 7/2 spin are also highlighted in kaon photoproduction off the nucleon

γ + p \to K^{+} + Λ

[ 54,55 ] and the ( S = 7/2) high‐spin spectroscopic characterization of the

[Cu - 3 Fe - 4 S]

cluster in the enzymes radical‐S‐adenosyl methionine. [ 56 ] No less important are the investigations on the structural and magnetic characterizations of dilution effects in spin‐7/2 crystalline structures, [ 57 ] as well as the research on the effects of crystal fields on the magnetic behavior in mixed systems containing spin‐7/2.…”

Section: Introductionmentioning

confidence: 99%

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

Madera

Espriella

Burgos

2023

Physica Status Solidi (b)

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Herein, thermomagnetic properties of a ferro‐ferrimagnetic system with magnetic moments of values , and 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.

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Phase diagrams and critical behaviours of the mixed spin-5/2 and spin-7/2 Ising system

Cited by 9 publications

References 42 publications

Phase diagrams of the ferrimagnetic mixed spin-1/2 and spin-5/2 Ising model under a longitudinal magnetic field

Phase diagrams of the ferrimagnetic mixed spin-1/2 and spin-5/2 Ising model under a longitudinal magnetic field

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

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

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