ZhETF, Vol. 131,
p. 1073 (June 2007)
(English translation - JETP,
Vol. 104, No. 6,
available online at www.springer.com
DYNAMIC PHASE TRANSITION IN THE KINETIC SPIN-1 BLUME - CAPEL MODEL: PHASE DIAGRAMS IN THE TEMPERATURE AND CRYSTAL-FIELD INTERACTION PLANE
Keskin M., Canko O., Temizer U.
Received: December 6, 2006
PACS: 05.50.+q, 05.70.Fh, 64.60.Ht, 75.10.Hk
Within a mean-field approach, we study the stationary states of the kinetic spin-1 Blume - Capel model in presence of a time-dependent oscillating external magnetic field. We use the Glauber-type stochastic dynamics to describe the time evolution of the system and obtain the mean-field dynamic equation of the 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, we find three fundamental types of phase diagrams in which they exhibit a dynamic tricritical point and only two of them a dynamic zero-temperature critical point.