Dynamic phase transition of the Blume-Capel model in an oscillating magnetic field.

Phys Rev E

Applied Mathematics Research Centre, Coventry University, Coventry CV1 5FB, United Kingdom.

Published: January 2018

We employ numerical simulations and finite-size scaling techniques to investigate the properties of the dynamic phase transition that is encountered in the Blume-Capel model subjected to a periodically oscillating magnetic field. We mainly focus on the study of the two-dimensional system for various values of the crystal-field coupling in the second-order transition regime. Our results indicate that the present nonequilibrium phase transition belongs to the universality class of the equilibrium Ising model and allow us to construct a dynamic phase diagram, in analogy with the equilibrium case, at least for the range of parameters considered. Finally, we present some complementary results for the three-dimensional model, where again the obtained estimates for the critical exponents fall into the universality class of the corresponding three-dimensional equilibrium Ising ferromagnet.

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http://dx.doi.org/10.1103/PhysRevE.97.012122DOI Listing

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