TRICRITICAL BEHAVIOR IN DILUTED MIXED SPIN-1 AND SPIN-1/2 ON SQUARE LATTICE

被引：38

作者：

BENYOUSSEF, A

ELKENZ, A

KANEYOSHI, T

机构：

[1] FAC SCI RABAT,MAGNETISME LAB,BP 1014,AVE IBN BATTOTA,RABAT,MOROCCO

[2] NAGOYA UNIV,DEPT PHYS,NAGOYA 46401,JAPAN

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 131卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(94)90026-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An effective-field theory with correlations is developed for a diluted mixed sping-1/2 and spin-1 Ising ferromagnetic system with a crystal-field interaction D in a square lattice (Z = 4). The phase diagrams in temperature-concentration of magnetic atoms (p) and in temperature-crystal field interaction planes exhibit a variety of interesting phenomena such as second order phase transitions, tricritical points and first order phase transitions. The reentrant phenomena are also observed.

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页码：179 / 182

页数：4

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