Blume-Capel ferromagnet driven by propagating and standing magnetic field wave: Dynamical modes and nonequilibrium phase transition
arXiv:1606.08155 · doi:10.1016/j.jmmm.2016.11.046
Abstract
The dynamical responses of Blume-Capel (S=1) ferromagnet to the plane propagating (with fixed frequency and wavelength) and standing magnetic field waves are studied sepa- rately in two dimensions by extensive Monte Carlo simulation. Depending on the values of temperature, amplitude of the propagating magnetic field and the strength of anisotropy, two different dynamical phases are observed. For a fixed value of anisotropy and the amplitude of the propagating magnetic field, the system undergoes a dynamical phase transition from a driven spin wave propagating phase to a pinned or spin frozen state as the system is cooled down. The time averaged magnetisation over a full cycle of the propagating magnetic field plays the role of the dynamic order parameter. A comprehensive phase diagram is plotted in the plane formed by the amplitude of the propagating wave and the temperature of the system. It is found that the phase boundary shrinks inward as the anisotropy increases. The phase boundary, in the plane described by the strength of the anisotropy and temperature, is also drawn. This phase boundary was observed to shrink inward as the field amplitude increases.
arXiv commentTo appear in J. Magn. Magn. Mater. (2016)
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Cited by in corpus (8)
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- Monte Carlo study of the two-dimensional kinetic Blume-Capel model in a quenched random crystal field
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- Numerical Simulation of a Two-Dimensional Blume-Capel Ferromagnet in an Oscillating Magnetic Field with a Constant Bias
- Anisotropy driven reversal of magnetisation in Blume-Capel ferromagnet: A Monte Carlo study
- Nonequilibrium phase transition in spin-S Ising ferromagnet driven by Propagating and Standing magnetic field wave
- Driven spin wave modes in XY ferromagnet: Nonequilibrium phase transition