Nonequilibrium phase transition in the kinetic Ising model: Is transition point the maximum lossy point ?

Details Nonequilibrium phase transition in the kinetic Ising model: Is transition point the maximum lossy point ? Nonequilibrium phase transition in the kinetic Ising model: Is transition point the maximum lossy point ?

1997-12-29

arxiv.org/abs/cond-mat/9712309v2

Physics

Condensed Matter

Statistical Mechanics

8 pages Revtex and 4 Postscript figures; To appear in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.58.179

The nonequilibrium dynamic phase transition, in the kinetic Ising model in presence of an oscillating magnetic field, has been studied both by Monte Carlo simulation (in two dimension) and by solving the meanfield dynamical equation of motion for the average magnetization. The temperature variations of hysteretic loss (loop area) and the dynamic correlation have been studied near the transition point. The transition point has been identified as the minimum-correlation point. The hysteretic loss becomes maximum above the transition point. An analytical formulation has been developed to analyse the simulation results. A general relationship among hysteresis loop area, dynamic order parameter and dynamic correlation has also been developed.

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