Dynamic magnetic behavior of the mixed-spin bilayer system in an oscillating field within the mean-field theory

ERTAŞ M., KESKİN M.

PHYSICS LETTERS A, cilt.376, sa.36, ss.2455-2466, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 376 Sayı: 36
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.physleta.2012.06.012
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2455-2466
  • Anahtar Kelimeler: Dynamic magnetic behavior of a bilayer, Ising system, Mixed spins, The Glauber-type stochastic dynamics, HEISENBERG FERRIMAGNETIC SYSTEM, SURFACE-LAYER MAGNETIZATION, ISING-MODEL, HYSTERESIS LOOPS, LATTICE, TRANSITION, FE/NI
  • Erciyes Üniversitesi Adresli: Evet

Özet

The dynamic magnetic behavior of the mixed Ising bilayer system (sigma = 2 and S = 5/2), with a crystal-field interaction in an oscillating field are studied, within the mean-field approach, by using the Glauber-type stochastic dynamics for both ferromagnetic/ferromagnetic and antiferromagnetic/ferromagnetic interactions. The time variations of average magnetizations and the temperature dependence of the dynamic magnetizations are investigated. The dynamic phase diagrams are presented in the reduced temperature and magnetic field amplitude plane and they exhibit several ordered phases, coexistence phase regions and critical points as well as a re-entrant behavior depending on interaction parameters. (c) 2012 Elsevier B.V. All rights reserved.