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本文应用Monte Carlo方法求得铁磁键稀疏平方点阵的Blume-Capel模型的相图。利用有限尺寸的标度理论,得到晶场为零时的相变温度,并同其他方法所得的结果作了比较。同时用Monte Carlo方法确定了键稀疏时三临界点的值对键浓度的依赖关系。We have used the Monte Carlo method to study the phase diagram of the ferromagnetic bond-dilute Blume-Capel model, combined with the finite-size scalar theory, and obtained the transition temperatures in zero crystal field, Comparison is made between the results of this simulation and other methods. The influence of the bond-dilute concentration on the tricriti-cal points is determined using the Monte Carlo method.
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