Phase transitions in the kinetic Ising model with competing dynamics

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Abstract

We study the nonequilibrium phase diagram and critical properties of a two-dimensional kinetic Ising model with competing Glauber and Kawasaki dynamics suggested by Tomé and de Oliveira [Phys. Rev. A 40, 6643 (1989)]. The role of the Kawasaki dynamics, chosen with probability 1-p, is to simulate a permanent energy flux into the system. The theoretical prediction for the phase diagram is improved significantly by using four-and six-point dynamical mean-field approximations. Monte Carlo simulations support that the ferromagnetic-paramagnetic phase transition changes from second to first order for sufficiently small p. The antiferromagnetic phase is found to be stable for a nonzero value of p even at T=0.

Original languageEnglish
Pages (from-to)7466-7469
Number of pages4
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume62
Issue number5 B
Publication statusPublished - Nov 2000

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Kawasaki Dynamics
Kinetic Ising Model
Phase Diagram
Ising model
Phase Transition
phase diagrams
Glauber Dynamics
Mean-field Approximation
kinetics
Non-equilibrium
Monte Carlo Simulation
First-order
Prediction
predictions
Energy
approximation
simulation
energy

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

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