Monte Carlo simulation of magnetic properties of a mixed spin-2 and spin-5/2 ferrimagnetic Ising system in a longitudinal magnetic field

Wang, Wei; Lv, Dan; Zhang, Fan; Bi, Jiang-lin; Chen, Junnan

doi:10.1016/j.jmmm.2015.02.070

Cited by 85 publications

(11 citation statements)

References 57 publications

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“…However, the limiting cases of the system (p=0 and p=1) correspond to mixed Ising spin systems which have been widely studied in literature. For instance, in reference [39], the authours have observed triple hysteresis behaviors similar to our results for a mixed spin-2 and spin-5/2 ferrimagnetic Ising system. Also, triple hystresis loops are observed for the other type of mixed spin systems, such as nanowires [40,41], nanoparticles [42,43].…”

supporting

confidence: 88%

Hysteresis properties of a mixed ferromagnetic-ferrimagnetic ternary alloy

Vatansever¹

2018

Academic Platform Journal of Engineering and Science

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In this work, we have investigated the hysteresis properties of a mixed ferro-ferrimagnetic ternary alloy system by Monte Carlo simulation method. The ternary alloy system contains two interpenetrating sublattices. One of the sublattice consists of type-A magnetic components with spin-3/2 while the other one is randomly occupied type-B and type-C magnetic components with spin-1 and spin-5/2, respectively. We consider both ferromagnetic and antiferromagnetic exchange interactions between nearest-neighbor magnetic components. The influences of the exchange interaction ratio, R, and the concentration value of type-B magnetic ions, p, on the remanent magnetization, coercivity and hysteresis loops of the system have been investigated in detail. It has been demonstrated that it is possible to modify the remanent magnetization, coercivity and also the saturation magnetization of the system by changing the concentration value and exchange interaction ratio.

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confidence: 88%

Hysteresis properties of a mixed ferromagnetic-ferrimagnetic ternary alloy

Vatansever¹

2018

Academic Platform Journal of Engineering and Science

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“…At compensation points, the system cannot interact with external fields. The effect of the single-ion anisotropy (crystal field) strength on critical and compensation properties has been theoretically studied by several authors using statistical-mechanical techniques: mean-field (MF) theory [20,21], Monte Carlo (MC) simulations [22,23], effective-field (EF) theory [24,25], Bethe lattice approach with exact recursion relations [26,27], etc., (see detailed references in [28]). An obvious way to solve the two-dimensional mixed spin Ising model is to map it onto an exactly solved one.…”

Section: Introductionmentioning

confidence: 99%

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

Karimou¹,

Yessoufou²,

Ngantso³

et al. 2019

Condens. Matter Phys.

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We used mean-field theory based on the Bogoliubov inequality for the Gibbs free energy to examine the magnetic properties of a mixed spin-5/2 and spin-7/2 Blume-Capel ferrimagnetic system. The thermal behaviours of the system magnetization are classified according to the extended Néel nomenclature. The system exhibits compensation phenomena where a complete cancellation of sublattice magnetizations is observed below the critical temperature. Temperature-dependent phase diagrams are constructed for the case of unequal sublattice crystal field interactions. Under appropriate conditions, our calculations reveal first-order transitions in addition to second-order ones previously observed in Monte Carlo simulations. 1 Нацiональна вища школа енергетики та процесiв науки (ENSGEP), унiверситет м. Абомей, Республiка Бенiн 2 Iнститут математики i фiзичних наук (IMSP), Республiка Бенiн 3 Унiверситет м. Абомей-Калавi, фiзичний вiддiл, Республiка Бенiн 4 GSMC, факультет природничих наук i технологiй, унiверситет Марiана Нгуабi, Браззавiль, Конго i LMPHE, факультет природничих наук, унiверситет V Мохаммеда, Рабат, Морокко 5 Унiверситет Ерджiєс, фiзичний вiддiл, 38039, Кайсерi, ТуреччинаМи застосували середньопольову теорiю, що базується на нерiвностi Боголюбова для вiльної енергiї Гiббса, для вивчення магнiтних властивостей змiшаної спiн-5/2 i спiн-7/2 феромагнiтної системи Блюма-Капела. Температурна поведiнка намагнiченостi системи класифiкується вiдповiдно до розширеної номенклатури Нееля. Система демонструє компенсацiйне явище, де спостерiгається повне скасування намагнiченостi пiдграток нижче критичної температури. Для випадку неоднакових взаємодiй кристалiчного поля пiдграток побудовано температурно залежнi фазовi дiаграми. При певних умовах нашi обчислення виявили перехiд першого роду додатково до переходу другого роду, що був спостережений ранiше в симуляцiях Монте Карло.Ключовi слова: середньопольова теорiя, спiн-змiшана система, намагнiченiсть, компенсацiйна температура, фазовi переходи 33601-10

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“…Despite their relative simplicity, mixed spin Ising models have proven to be very useful to study the magnetic and critical properties of these materials [6][7][8][9][10]. Mixed Ising models have been studied by mean-field approaches, and numerical simulations [11][12][13][14]. Experimental results of amorphous ferrimagnetic oxides where Fe 3+ ions are present, have been analyzed by mixed Ising models [15].…”

Section: Introductionmentioning

confidence: 99%

Mixed spin-1 and spin-2 Ising model: study of the ground states

2018

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We calculate ground state configurations of a mixed Ising model on a square lattice where spins =   S 2, 1, 0 i A in one A sublattice are in alternating sites with spins s = 1, 0 j B , located on the other B sublattice.The Hamiltonian of the system includes nearest-neighbors interactions between the S i A and s j B spins, next-nearest-neighbors interactions between the S i A spins, and between the s j B spins, single-ion anisotropy, and an external magnetic field. [24-27], and Fe Fe II III bimetallic oxalates, present ferrimagnetic ordering and compensation temperatures, properties that OPEN ACCESS RECEIVED

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Monte Carlo simulation of magnetic properties of a mixed spin-2 and spin-5/2 ferrimagnetic Ising system in a longitudinal magnetic field

Cited by 85 publications

References 57 publications

Hysteresis properties of a mixed ferromagnetic-ferrimagnetic ternary alloy

Hysteresis properties of a mixed ferromagnetic-ferrimagnetic ternary alloy

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

Mixed spin-1 and spin-2 Ising model: study of the ground states

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