Dynamic behaviors of spin-1/2 bilayer system within Glauber-type stochastic dynamics based on the effective-field theory

ERTAŞ M., Kantar E., KESKİN M.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.358, ss.56-64, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 358
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.jmmm.2014.01.025
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.56-64
  • Anahtar Kelimeler: Kinetic spin-1/2 bilayer system, Effective-field theory, Dynamic phase transition, Dynamic phase diagram, ISING THIN-FILMS, MAGNETIC-PROPERTIES, PHASE-TRANSITIONS, OSCILLATING FIELD, MODEL, LATTICE, TEMPERATURE, POINTS, FE/NI
  • Erciyes Üniversitesi Adresli: Evet

Özet

The dynamic phase transitions (DPTs) and dynamic phase diagrams of the kinetic spin-1/2 bilayer system in the presence of a time-dependent oscillating external magnetic field are studied by using Glauber-type stochastic dynamics based on the effective-field theory with correlations for the ferromagnetic/ferromagnetic (FM/FM), antiferromagnetic/ferromagnetic (AFM/FM) and antiferromagnetic/antiferromagnetic (AFM/AFM) interactions. The time variations of average magnetizations and the temperature dependence of the dynamic magnetizations are investigated. The dynamic phase diagrams for the amplitude of the oscillating field versus temperature were presented. The results are compared with the results of the same system within Glauber-type stochastic dynamics based on the mean-field theory. (C) 2014 Elsevier B.V. All rights reserved.