边界条件对磁性Ising系统相图的影响  

EFFECTS OF BOUNDARY CONDITION ON PHASE DIAGRAM OF ISING MODE

作　　者：胡经国[1,2] 马余强 

机构地区：[1]扬州大学工学院基础科学系 [2]南京大学物理系

出　　处：《低温物理学报》1998年第5期396-400,共5页Low Temperature Physical Letters

摘　　要：本文应用Ｍｏｎｔｅｃａｒｌｏ方法求得不同边界条件下铁磁平方点阵Ｉｓｉｎｇ模型的相图，利用有限尺寸的标度理论，得到其相应的相变温度，并同周期性边界条件下的结果作了比较。Abstract In this paper, we have used the Monte Carlo method to study the phase diagram of the square ferromagnetic Ising model on different boundary condition, combined with the Finite Size scalar theory, and obtained the transition temperature respectively, comparsion is made between the results of this simulation and that of periodic boundary condition simulation, and the dynamic process of different boundary condition near the critical point is observed using the Monte Carlo method.

关 键 词：M-C法 铁磁性 低温 磁性 伊辛系统 相图 

分 类 号：O513[理学—低温物理]