Monte Carlo study of dynamic phase transition in Ising metamagnet driven by oscillating magnetic field

Abstract

The dynamical responses of Ising metamagnet (layered antiferromagnet) in the presence of a sinusoidally oscillating magnetic field are studied by Monte Carlo simulation. The time average staggered magnetisation plays the role of dynamic order parameter. A dynamical phase transition was observed and a phase diagram was plotted in the plane formed by field amplitude and temperature. The dynamical phase boundary is observed to shrink inward as the relative antiferromagnetic strength decreases. The results are compared with that obtained from pure ferromagnetic system. The shape of dynamic phase boundary observed to be qualitatively similar to that obtained from previous meanfield calculations.

12 pages latex, PC-12-2010, To appear in J. Mag. Mag. Mat. (2011)

References in corpus (7)

• Dynamic transitions and hysteresis
• Absence of First-order Transition and Tri-critical Point in the Dynamic Phase Diagram of a Spatially Extended Bistable System in an Oscillating Field
• Nonequilibrium phase transition in the kinetic Ising model: Existence of tricritical point and stochastic resonance
• Nonequilibrium Phase Transition in the Kinetic Ising model: Critical Slowing Down and Specific-heat Singularity
• Dynamic phase transitions in thin ferromagnetic films
• Multiple dynamic transitions in anisotropic Heisenberg ferromagnet driven by polarised magnetic field
• Exchange anisotropy and the dynamic phase transition in thin ferromagnetic Heisenberg films

Cited by in corpus (4)

• Stationary State Solutions of a Bond Diluted Kinetic Ising Model: An Effective-Field Theory Analysis
• Dynamic-Symmetry-Breaking Breathing and Spreading Transitions in Ferromagnetic Film Irradiated by Spherical Electromagnetic Wave
• Magnetic response of a disordered binary ferromagnetic alloy to an oscillating magnetic field
• Ising Metamagnet Driven by Propagating Magnetic Field Wave: Nonequilibrium Phases and Transitions