CRITICAL-BEHAVIOR OF THE ISING-MODEL WITH 4-SPIN COUPLING

被引:35
|
作者
WANG, CL [1 ]
QIN, ZK [1 ]
LIN, DL [1 ]
机构
[1] SUNY BUFFALO,DEPT PHYS & ASTRON,BUFFALO,NY 14260
关键词
D O I
10.1016/S0304-8853(97)90016-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Critical conditions for the first-order phase transition are determined for a system of 1 2 spins on the Ising model with a four-spin coupling term. The critical point parameters <Sz>c, Tc and Ec are found from the mean field theory. Relations between the three critical values and the four-spin coupling strength are discussed. © 1990.
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页码:87 / 92
页数:6
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