Published September 27, 2024 | Version v1
Journal article

Dynamic magnetic characteristics of the kinetic Ising model under the influence of randomness

  • 1. School of Science, Shenyang University of Technology, Shenyang 110870, China
  • 2. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China

Description

In this paper, we propose to solve the issues of long-range or next-neighbor interactions by introducing randomness. This approach is applied to the square lattice Ising model. The Monte Carlo method with the Metropolis algorithm is utilized to calculate the critical temperature TC* under equilibrium thermodynamic phase transition conditions and to investigate the characterization of randomness in terms of magnetization. In order to further characterize the effect of this randomness on the magnetic system, clustering coefficients Cp are introduced. Furthermore, we investigate a number of dynamic magnetic behaviors, including dynamic hysteresis behaviors and metamagnetic anomalies. The results indicate that noise has the effect of destabilizing the system and promoting the dynamic phase transition. When the system is subjected to noise, the effect of this noise can be mitigated by the addition of a time-oscillating magnetic field. Finally, the evolution of anomalous metamagnetic fluctuations under the influence of white noise is examined. The relationship between the bias field corresponding to the peak of the curve hbpeak and the noise parameter σ satisfies the exponential growth equation, which is consistent with other results.

Additional details

Identifiers

DOI
10.1103/PhysRevE.110.034134;
Crossref Funder ID
10.13039/501100005047;

Publishing Information

Journal Title
Physical Review E
Journal Volume
110
Journal Issue
3
Journal Page Range
14 pgs.
ISSN
1089-3787

Optional Information

Copyright
©2024 American Physical Society
Contract/Grant/Project number
2023-MS-218
Notes
Contact Email: Contact author: weiwang@sut.edu.cn; Record automatically processed
Funding organization
Natural Science Foundation of Liaoning Province