Nonequilibrium dynamics of a mixed spin-1/2 and spin-3/2 Ising ferrimagnetic system with a time dependent oscillating magnetic field source

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VATANSEVER E., POLAT H.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.392, ss.42-49, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 392
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jmmm.2015.05.001
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.42-49
  • Anahtar Kelimeler: Lattice theory, Phase transitions in Statistical Mechanics and Thermodynamics, Dynamic critical behavior, Ferrimagnetics, TRANSITION-METAL ALLOYS, CRYSTAL-FIELD, THIN-FILMS, PHASE-TRANSITION, HYSTERESIS LOOPS, MONTE-CARLO, MODEL, TEMPERATURE, REVERSAL, LATTICE
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Nonequilibrium phase transition properties of a mixed Ising ferrimagnetic model consisting of spin-1/2 and spin-3/2 on a square lattice under the existence of a tune dependent oscillating magnetic held have been investigated by making use of Monte Carlo simulations with a single-spin flip Metropolis algorithm. A complete picture of dynamic phase boundary and magnetization profiles have been illustrated and the conditions of a dynamic compensation behavior have been discussed in detail. According to our simulation results, the considered system does not point out a dynamic compensation behavior, when it only includes the nearest-neighbor interaction, single-ion anisotropy and an oscillating magnetic held source. As the next-nearest-neighbor interaction between the spins-1/2 rakes into account and exceeds a characteristic value which sensitively depends upon values of single-ion anisotropy and only of amplitude of external magnetic held, a dynamic compensation behavior occurs in the system. Finally, it is reported that it has not been found any evidence of dynamically first-order phase transition between dynamically ordered and disordered phases, which conflicts with the recently published molecular held investigation, for a wide range of selected system parameters. (C) 2015 Elsevier B.V. All rights reserved.