Investigation of oscillation frequency and disorder induced dynamic phase transitions in a quenched-bond diluted Ising ferromagnet
arXiv:1207.6977 · doi:10.1016/j.jmmm.2012.10.024
Abstract
Frequency evolutions of hysteresis loop area and hysteresis tools such as remanence and coercivity of a kinetic Ising model in the presence of quenched bond dilution are investigated in detail. The kinetic equation describing the time dependence of the magnetization is derived by means of effective-field theory with single-site correlations. It is found that the frequency dispersions of hysteresis loop area, remanence and coercivity strongly depend on the quenched bond randomness, as well as applied field amplitude and oscillation frequency. In addition, the shape of the hysteresis curves for a wide variety of Hamiltonian parameters is studied and some interesting behaviors are found. Finally, a comparison of our observations with those of recently published studies is represented and it is shown that there exists a qualitatively good agreement.
11 pages, 8 figures
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Cited by in corpus (6)
- Dynamic behaviors of the hexagonal Ising nanowire
- Dynamic phase transitions in the presence of quenched randomness
- Monte Carlo study of the two-dimensional kinetic Blume-Capel model in a quenched random crystal field
- Magnetic response of a disordered binary ferromagnetic alloy to an oscillating magnetic field
- Dynamical response of the Ising model to the amplitude modulated time dependent magnetic field
- Dynamic phase transitions in a ferromagnetic thin film system: A Monte Carlo simulation study