The Glauber dynamics for a spin-1 metamagnetic Ising system with bilinear and biquadratic interactions
作者： Mustafa Keskin , Osman Canko , Ersin Kantar
DOI: 10.1016/J.PHYSLETA.2009.04.044
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摘要: We present a study, within mean-field approximation, of the dynamics spin-1 metamagnetic Ising system with bilinear and biquadratic interactions in presence time-dependent oscillating external magnetic field. First, we employ Glauber transition rates to construct set dynamic equations. Then, study time variation average order parameters find phases system. also investigate thermal behavior characterize nature (first- or second-order) transitions. The phase transitions are obtained diagrams constructed two different planes. contain disordered ordered phases, four mixed that strongly depend on interaction parameters. Phase display one tricritical points, double critical end quadruple points. A comparison is made results other systems.
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