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采用主方程方法在对概率近似下对三元fcc结构晶体在 ( 0 0 1)方向的一个层面的有序无序动力学过程进行了研究 .计算了长程序参量 (LRO)和短程序参量 (SRO)随时间的演化过程 .在系统从完全无序态弛豫到平衡态的过程中存在各种瞬态有序相 .瞬态相有着不同的特点 ,如序参量 (LRO ,SRO)瞬态相曲线形状不同等 .产生它们的原因有不同的原子特征迁移时间、原子间最近邻和次近邻相互作用差异、短程相关性和长程相关性的差异对弛豫过程的影响 .
The main equation method was used to investigate the orderly and unordered dynamics process of the ternary fcc structure crystal in the (0 0 1) direction under the approximation of probability. The LRO and short program parameters SRO) evolves over time, there are various kinds of transient ordered phases in the process of relaxation from complete disordered states to equilibrium states, which have different characteristics such as LRO (SRO) transient The shape of the phase curve, etc .. The reason for their production are the different migration times of atomic features, the differences in the interaction between the nearest neighbor and the nearest neighbor, the correlation between short-range and long-range correlations on the relaxation process.