简立方格子上界面的自旋S（1）反铁磁Ising模型研究  

A STUDY OF THE INTERFACES IN THE ANTIFERROMAGNETIC ISING SPIN-1 MODEL ON A SIMPLE CABIC LATTICE

作　　者：吴银忠[1] 王养璞 

机构地区：[1]苏州大学物理系

出　　处：《低温物理学报》1994年第4期290-296,共7页Low Temperature Physical Letters

摘　　要：本文依据文献［１］用自旋Ｓ（１）Ｉｓｉｎｇ模型研究了具有近邻（Ｊ１）和次近邻（ＲＪ１）相互作用的简立方格子的（１００）、（１１０）和（１１１）界面性质．在体内为反铁磁相互作用下，分析了界面的基态，并用Ｍ－Ｃ方法计算了界面的低温性质，给出了ＳＣ格子的三类Ｔ－Ｒ界面相图，由此讨论了二类界面相变（宏观刻面和粗化）及其在氯化钠晶体界面上的应用．Abstract Based on the reference [1], the properties of some low-index interfaces (100), (110) and (111) for SC lattice are studied by the AF Ising Spin-1 model. The system studied here has the nearest-neighbour and next-nearest-neighbour interactions. We analyse the ground states of these interfaces with the AF interactions in the bulk. The Monte-Carlo method and the T=0 step energy are used to investigate the low-temperature properties of these interfaces. Finally,as a special case, the properties of the interfaces of Nacl crystal are.discussed.

关 键 词：简立方格子 界面 伊辛模型 低温 

分 类 号：O513[理学—低温物理]