Dynamic phase transitions in a ferromagnetic thin film system: A Monte Carlo simulation study

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VATANSEVER E., POLAT H.

THIN SOLID FILMS, vol.589, pp.778-782, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 589
  • Publication Date: 2015
  • Doi Number: 10.1016/j.tsf.2015.07.009
  • Journal Name: THIN SOLID FILMS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.778-782
  • Keywords: Ferromagnetic thin film, Dynamic phase transitions, Monte Carlo simulation, KINETIC ISING-MODEL, EFFECTIVE-FIELD THEORY, OSCILLATING FIELD, MEAN-FIELD, HYSTERESIS, BEHAVIOR
  • Dokuz Eylül University Affiliated: Yes

Abstract

Dynamic phase transition properties of a ferromagnetic thin film system under the influence of both bias and time-dependent magnetic fields have been elucidated by means of kinetic Monte Carlo simulation with local spin update Metropolis algorithm. The obtained results after a detailed analysis suggest that the bias field is the conjugate field to dynamic order parameter, and it also appears to define a phase line between two antiparallel dynamic ordered states depending on the considered system parameters. Moreover, the data presented in this study well qualitatively reproduce the recently published experimental findings where time-dependent magnetic behavior of a uniaxial cobalt films is studied in the neighborhood of dynamic phase transition point. (C) 2015 Elsevier B.V. All rights reserved.