A 2-DIMENSIONAL ISING-MODEL WITH NONUNIVERSAL CRITICAL-BEHAVIOR

被引：27
|
作者：
MINAMI, K
SUZUKI, M
机构：
[1] Department of Physics, Faculty of Science, University of Tokyo, Hongo, Bunkyo-ku, Tokyo
来源：
PHYSICA A | 1993年 / 195卷 / 3-4期
关键词：
D O I：
10.1016/0378-4371(93)90170-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that the two-dimensional square lattice Ising model with the nearest-neighbour ferromagnetic interaction J, the next-nearest-neighbour antiferromagnetic interaction J' < 0 and the four-body interaction J(int) shows non-universal critical behaviour when J is small. The estimations of critical temperature T(c) and the critical exponent of susceptibility gamma are performed within errors of 0.003% and 1.2%, respectively.
引用
收藏
页码：457 / 473
页数：17
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