Monte Carlo study on the compensation behavior and hysteresis properties of a ferrimagnetic superlattice with alternate layers

2020 ◽  
Vol 34 (21) ◽  
pp. 2050205
Author(s):  
Liqin Jiang ◽  
Shuangjuan Shen ◽  
Qian Feng ◽  
Jian-Min Zhang ◽  
Zhigao Huang

Based on Monte Carlo simulation, the magnetic properties of a mixed spin-1 and spin-3/2 Ising superlattice with alternate layers are studied. The effects of interlayer coupling and external magnetic field on the compensation behavior and hysteresis properties for the ferrimagnetic superlattice are investigated. The occurrence of a compensation point is found to be greatly affected by the interlayer coupling. In particular, various multiple hysteresis loops can be observed under certain system parameters. The calculated results agree well with available experimental and theoretical works.

2018 ◽  
Vol 32 (26) ◽  
pp. 1850289 ◽  
Author(s):  
A. Alrajhi ◽  
M. Madani ◽  
N. Hachem ◽  
M. El Bouziani

The ferrimagnetic mixed spin-1/2 and spin-1 cubic Ising nanowire is studied in the framework of the Monte Carlo simulation. The competition between the bilinear interaction and crystal field of spin-1 atoms as well as the nanowire size effect is highlighted. The corresponding phase diagram is discussed showing compensation points and critical second-order phase transitions. The effect of an external magnetic field and the hysteresis loops behavior are also carried out. Finally, we compare our results with other works in the literature.


Open Physics ◽  
2013 ◽  
Vol 11 (4) ◽  
Author(s):  
Botond Tyukodi ◽  
Ioan-Augustin Chioar ◽  
Zoltán Néda

AbstractThe topology and dynamics of stripe-like magnetic domains obtained in a ferrimagnetic garnet subjected to a time-dependent external magnetic field is studied experimentally and theoretically. Experiments are performed on a commercially available magnetic bubble apparatus, allowing the observation of the time-evolution of the magnetic domain structure. The system is modeled by a meso-scale Ising-type lattice model. Exchange and dipolar interactions between the spins, and interaction of the spins with the external magnetic field are considered. The model is investigated by kinetic Monte Carlo simulations with time-varying transition rates. In the limit of low temperatures the elaborated model leads to a magnetic domain topology and dynamics that is similar to the ones observed in the experiments. In the highly non-equilibrium limit with a high driving frequency the model reproduces the experimentally recorded hysteresis loops as well.


2017 ◽  
Vol 4 (11) ◽  
pp. 116108 ◽  
Author(s):  
K Htoutou ◽  
B Nmaila ◽  
M Madani ◽  
L B Drissi ◽  
R Ahl Laamara

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