Influence of the cubic anisotropy constants on the hysteresis loops of single-domain particles: A Monte Carlo study

1999 ◽  
Vol 85 (4) ◽  
pp. 2287-2292 ◽  
Author(s):  
J. Garcı́a-Otero ◽  
M. Porto ◽  
J. Rivas ◽  
A. Bunde
Keyword(s):  
Monte Carlo ◽  
Hysteresis Loops ◽  
Monte Carlo Study ◽  
Single Domain ◽  
Cubic Anisotropy

Magnetic properties of a tri-decorated graphene structure: Monte Carlo study

2016 ◽  
Vol 30 (32) ◽  
pp. 1650233
Author(s):  
A. Jabar ◽  
N. Tahiri ◽  
L. Bahmad ◽  
A. Benyoussef
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Phase Diagrams ◽  
Ground State ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Monte Carlo Study ◽  
Magnetic Hysteresis Loops ◽  
Reduced Temperature ◽  
Good Agreement

In this paper, we study the magnetic properties of a tri-decorated [Formula: see text] graphene structure using Monte Carlo simulations (MCS). Indeed, we first elaborate the ground state phase diagrams and then, we found that from [Formula: see text] phases, the only stable configurations are: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text]. For low reduced temperature values, the partial magnetizations are found to be in good agreement with the corresponding ground state phase diagrams. The corresponding partial susceptibilities show a notable peak around the reduced temperature value 2.0 in the absence of the external magnetic field [Formula: see text] and crystal field [Formula: see text]. To complete this study, we present and discuss the magnetic hysteresis loops.

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
Keyword(s):  
Magnetic Field ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Hysteresis Loops ◽  
Monte Carlo Study ◽  
Interlayer Coupling ◽  
System Parameters ◽  
Mixed Spin ◽  
Compensation Behavior ◽  
Hysteresis Properties

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.

scholarly journals Computer Simulations of Thermal Switching in Small-Grain Ferromagnets

1998 ◽  
Vol 517 ◽  
Author(s):  
M. A. Novotny ◽  
G. Brown ◽  
P. A. Rikvold
Keyword(s):  
Monte Carlo ◽  
Computer Simulations ◽  
Applied Field ◽  
Monte Carlo Study ◽  
System Size ◽  
Single Domain ◽  
Field Temperature ◽  
Thermal Switching ◽  
Ferromagnetic Particles

AbstractWe present Monte Carlo and Langevin micromagnetic calculations to investigate thermal switching of single-domain ferromagnetic particles. For the Monte Carlo study we place particular emphasis on the probability that the magnetization does not switch by time t, Pnot(t). We find that Pnot(t) has different behaviors in different regimes of applied field, temperature, and system size, and we explain this in terms of different reversal mechanisms that dominate in the different regimes. In the micromagnetic study of an array of Ni pillars, we show that the reversal mode is an ‘outside-in’ mode starting at the perimeter of the array of pillars.

scholarly journals A kinetic Monte Carlo study for stripe-like magnetic domains in ferrimagnetic thin films

Open Physics ◽  
2013 ◽  
Vol 11 (4) ◽  
Author(s):  
Botond Tyukodi ◽  
Ioan-Augustin Chioar ◽  
Zoltán Néda
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
External Magnetic Field ◽  
Kinetic Monte Carlo ◽  
Magnetic Domain ◽  
Hysteresis Loops ◽  
Monte Carlo Study ◽  
Driving Frequency ◽  
Magnetic Domains ◽  
Equilibrium Limit

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.

The magnetic properties of single-domain particles with cubic anisotropy. I. Hysteresis loops

1993 ◽  
Vol 5 (17) ◽  
pp. 2779-2792 ◽  
Author(s):  
M Walker ◽  
P I Mayo ◽  
K O'Grady ◽  
S W Charles ◽  
R W Chantrell
Keyword(s):  
Magnetic Properties ◽  
Hysteresis Loops ◽  
Single Domain ◽  
Cubic Anisotropy
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