FERROMAGNETISM IN THE BLUME-EMERY-GRIFFITHS MODEL ON FINITE-SIZE CAYLEY TREE

被引：1
|
作者：
Chen, Wen-Jun [1 ]
Kong, Xiang-Mu [1 ]
机构：
[1] Qufu Normal Univ, Dept Phys, Shandong Prov Key Lab Laser Polarizat & Informat, Qufu 273165, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2011年 / 25卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Magnetization; Cayley tree; Blume-Emery-Griffiths model; ONE ISING-MODEL; ZERO-FIELD SUSCEPTIBILITY; BETHE LATTICE; BIQUADRATIC INTERACTIONS; THERMODYNAMIC LIMIT; UNIAXIAL ANISOTROPY; SPIN; BEHAVIOR; APPROXIMATION; EXCHANGE;
D O I：
10.1142/S0217984911025602
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The ferromagnetic properties of the spin-1 BEG model on finite-size Cayley tree are investigated using the exact recursion method. The spontaneous magnetization of the system is studied in detail for different values of the reduced crystal-field interaction D/J, and it is found that there is an unusual behavior (anti-Curie temperature) when D/J > 2.0. We also obtain the Curie temperature of this finite-size system. When the system size is large enough, our results will fit well with that in the thermodynamic limit.
引用
收藏
页码：385 / 390
页数：6
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