Dynamic phase transitions in the kinetic spin-1 Blume–Capel model on the Bethe lattice

Seyma Akkaya Deviren and Erhan Albayrak

Physica A: Statistical Mechanics and its Applications, 2011, vol. 390, issue 20, 3283-3289

Abstract: The stationary states of the kinetic spin-1 Blume–Capel (BC) model on the Bethe lattice are analyzed in detail in terms of recursion relations. The model is described using a Glauber-type stochastic dynamics in the presence of a time-dependent oscillating external magnetic field (h) and crystal field (D) interactions. The dynamic order parameter, the hysteresis loop area and the dynamic correlation are calculated. It is found that the magnetization oscillates around nonzero values at low temperatures (T) for the ferromagnetic (F) phase while it only oscillates around zero values at high temperatures for the paramagnetic (P) phase. There are regions of the phase space where the two solutions coexist. The dynamic phase diagrams are obtained on the (kT/J,h/J) and (kT/J,D/J) planes for the coordination number q=4. In addition to second-order and first-order phase transitions, dynamical tricritical points and triple points are also observed.

Keywords: Dynamic phase transition; Bethe lattice; Kinetic Ising model; Spin 1; Oscillating field (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:390:y:2011:i:20:p:3283-3289

DOI: 10.1016/j.physa.2011.05.020

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