Acta Physica Sinica
SHORT-TIME CRITICAL DYNAMIC PROCESS OF TWO-LAYER ISING MODEL
WU MU-YING, Ye AiJun, LI ZI-BING, Zeng Wenguang, (1)东莞理工学院电子系,东莞 511700; (2)中山大学物理系,广州 510275
Abstract
Monte Carlo simulations of critical dynamics has been used to study the short-time process and scaling behavior of two-layer Ising model. The result shows that there are critical points even when the coupling between the two layers is not equal to zero; the short-time dynamic critical exponent θ was determined; the traditional critical exponent 1/νz was estimated also.Our result encouraged the supposition of the existence of the critical line and evidenced that this model was likely a weak universal model.