Stochastic dynamics and the dynamic phase transition in thin ferromagnetic films

Hyunbum Jang, Malcolm J. Grimson, Thomas B. Woolf

Research output: Contribution to journalArticle

Abstract

The investigation of the dynamic phase behavior of a classical Heisenberg spin system with a bilinear exchange anisotropy in a planar thin film geometry by Monte Carlo simulations using different forms for the stochastic dynamics was discussed. Both Glauber and Metropolis dynamics show a continuous dynamic phase transition (DPT) in simulations of the DPT in films subject to a pulsed oscillatory external field with competing surface field. It was observed that the transition region for the DPT as a function of temperature was more extended with Metropolis dynamics. It was shown that the difference arises from a decoupling of the surface and bulk responses of the film near the dynamic phase transition with Metropolis dynamics.

Original languageEnglish (US)
Article number047101
Pages (from-to)047101-1-047101-4
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume70
Issue number4 2
DOIs
StatePublished - Oct 2004

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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