【摘要】 采用动力学MonteCarlo方法研究了二层Ising模型的临界性质及早期动力学标度行为 .结果表明层间耦合不为零时也存在临界点 ;计算了早期动力学临界指数θ;估计了传统的临界指数 1/νz .其结果支持临界线存在的猜想 ,并表明此模型很可能是一种弱普适模型更多还原

【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.更多还原