Order of Phase Transition on a Simple Cubic Lattice Determined by Cluster Variation Method

被引：3
|
作者：
Kiyokane, Naoya [1 ]
Mohri, Tetsuo [1 ,2 ]
机构：
[1] Hokkaido Univ, Div Engn & Mat Sci, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan
[2] Hokkaido Univ, Res Ctr Integrat Math, Sapporo, Hokkaido 0608628, Japan
来源：
MATERIALS TRANSACTIONS | 2010年 / 51卷 / 03期
关键词：
cluster variation method; order of phase transition; simple cubic lattice; correlation function; VARIATION APPROXIMATION; EQUILIBRIA; ALLOYS;
D O I：
10.2320/matertrans.MBW200904
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Detailed analyses of the free energy behavior near the order-disorder transition temperature on a simple cubic lattice are;Attempted by cluster variation method (CVM). The entropy is formulated within a cubic approximation of the CVM and two kinds of nearest neighbor pair interaction energies are assumed in the internal energy; one is independent of an atomic distance, r, and the other depends on r through Lennard-Jones type pair potential. In both cases, it is found that the order of the transition is of second order. [doi: 10.2320/matertrans.MBW200904]
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页码：463 / 468
页数：6
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