Dynamic phase transition in the kinetic spin-1 Blume-Capel model: Phase diagrams in the temperature and crystal-field interaction plane


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Keskin M. , Canko O., Temizer U.

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, cilt.104, ss.936-942, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 104 Konu: 6
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1134/s1063776107060118
  • Dergi Adı: JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
  • Sayfa Sayıları: ss.936-942

Özet

Within a mean-field approach, the stationary states of the kinetic spin-1 Blume-Capel model in the presence of a time-dependent oscillating external magnetic field is studied. The Glauber-type stochastic dynamics is used to describe the time evolution of the system and obtain the mean-field dynamic equation of motion. The dynamic phase-transition points are calculated and phase diagrams are presented in the temperature and crystal-field interaction plane. According to the values of the magnetic field amplitude, three fundamental types of phase diagrams are found: One exhibits a dynamic tricritical point, while the other two exhibit a dynamic zero-temperature critical point.