Monte Carlo study of a ferrimagnetic mixed-spin (2, 5/2) system with the nearest and next-nearest neighbors exchange couplings

Bi, Jiang-lin; Wang, Wei; Li, Qi

doi:10.1016/j.spmi.2017.04.004

Cited by 40 publications

(3 citation statements)

References 65 publications

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“…We can observe that the compensation temperature appears only when J B =jJ AB j > 0:5 and takes a constant value T comp =jJ AB j ¼ 10:31 for great values of J B =jJ AB j, whereas the critical temperature grows linearly with the increase of J B =jJ AB j. Similar phase diagrams have been obtained in some mixed-spin systems such as in the case of nanowires (Aharrouch et al, 2020;Dakir et al, 2015), nanotube (Mi et al, 2018) and ferrimagnetic systems on honeycomb and square lattices (Deviren et al, 2011;Bi et al, 2017;Nakamura, 2000;Li et al, 2005).…”

Section: Effect Of the Exchange Interaction J Bsupporting

confidence: 68%

Mixed spin-3/2 and spin-2 nanowire: magnetic properties and hysteresis behaviors

Kihel

Aharrouch

Qahoom

et al. 2021

MMMS

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PurposeThe purpose of this article is to investigate the magnetic properties and the hysteresis loops behavior of a ferrimagnetic cubic nanowire with mixed spins SA = 3/2 and SB = 2.Design/methodology/approachWe have used the Monte Carlo simulation to examine the influences of the exchange interaction JB, the crystal field ∆ and the temperature on the magnetic properties and hysteresis loops of the nanowire. More exactly, we have shown the temperature dependence of the sublattice magnetizations (mA and mB) and the total magnetization (M) for several values of the Hamiltonian parameters, as well as the corresponding phase diagrams. Finally, the effect of an external magnetic field is studied by plotting the hysteresis loops of the system for different values of exchange interaction, crystal field and temperature.FindingsThe obtained results show the existence of second-order phase transitions, as well as the compensation behavior. Moreover, according to the values of the Hamiltonian parameters, the system can exhibit one, two or three hysteresis loops.Originality/valueThe magnetic nanowires are of great interest in experimental works, but without theoretical explanations, the experimental results cannot be clarified in depth. For this, we contribute through this theoretical study to understand the nanowires, especially those with mixed spins (2, 3/2).

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Section: Effect Of the Exchange Interaction J Bsupporting

confidence: 68%

Mixed spin-3/2 and spin-2 nanowire: magnetic properties and hysteresis behaviors

Kihel

Aharrouch

Qahoom

et al. 2021

MMMS

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“…This is due to the fact that the decrease of DB/|JAB| imposes the spins of sublattice (B) to be in a weak spin state, producing the coexistence of several frustrated spin states at low temperature. Moreover, when the temperature increases, the thermal agitation becomes more dominant than the couplings between the spins and the anisotropies, and thus the frustrated spins are released, which shows that the effect of temperature on the curves of the magnetization begins to become more important [36,37]. The results found here are similar to those obtained for mixed spin-1 and spin-2 Heisenberg ferrimagnetic system using the Green's function technique [29], and for mixed-spin (1/2, 5/2) Ising system by MFA and MCS [38].…”

Section: Case Of Ja=jb=0mentioning

confidence: 99%

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Lafhal

Jalal

Hasnaoui

et al. 2023

JNanoR

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The magnetic and thermal properties of a ferrimagnetic mixed spin-1 and spin-2 cubic Ising nanowire are studied by using the Monte Carlo simulation. The influences of the nearest (JAB) and next-nearest neighbor (JA and JB) exchange interactions and the single-ion anisotropies (DA and DB) on the critical and compensation temperatures are illustrated. Moreover, the phase diagrams on the (temperature, anisotropy) plane are plotted for several values of JA/|JAB|. The system shows very rich and interesting behaviors, namely first and second order phase transitions, tricritical points and compensation phenomenon. Finally, the dependence of hysteresis loops on the anisotropies, the exchange interactions and the temperature is also investigated.

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“…The studies of these systems are related to the experimental researches of molecular-based magnetic materials and nano-graphene films. In particular, a kind of molecular-based ferrimagnets, namely AFe II Fe III (C 2 O 4 ) 3 (A = N( n − C n H 2 n +1 ) 4 , n = 3–5), have been the subject under extensive theoretical discussions of mixed-spin Ising (or transverse Ising) systems, where spins of Fe II and Fe III atoms are respectively taken as 2 and 5/2 and they are coupled by a negative exchange interaction in each layer and two positive interactions between layers (see the references in the recent theoretical works [1,2,3,4]). For nano-graphene films, on the other hand, the magnetic properties of the ferromagnetic and antiferromagnetic two (or three) layers of honeycomb lattices described by the spin-1/2 Ising (or transverse Ising) models have been recently investigated by the use of the EFT [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Effects of a Transverse Field in Two Mixed-Spin Ising Bilayer Films

Kaneyoshi

2017

Nanomaterials

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The magnetic properties (phase diagrams and magnetizations) of two mixed-spin Ising bilayer films with a transverse field are investigated by the use of the effective field theory with correlations. The systems consist of two magnetic atoms where spin-1/2 atoms are directed to the z-direction and only spin-1 atoms are canted from the z-direction by applying a transverse field. We examined how magnetization sign reversal can be realized in the system, due to the effects of the transverse field on the spin-1 atoms. The compensation point phenomena are found in both systems, depending on the selections of physical parameters. However, the reentrant phenomena are found only for one of the two systems.

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Monte Carlo study of a ferrimagnetic mixed-spin (2, 5/2) system with the nearest and next-nearest neighbors exchange couplings

Cited by 40 publications

References 65 publications

Mixed spin-3/2 and spin-2 nanowire: magnetic properties and hysteresis behaviors

Mixed spin-3/2 and spin-2 nanowire: magnetic properties and hysteresis behaviors

Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

Effects of a Transverse Field in Two Mixed-Spin Ising Bilayer Films

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