Exact solution of a decorated ferrimagnetic Ising model

被引：53

作者：

Dakhama, A ^{[1
]}

机构：

[1] Univ Hassan II Ain Chock, Fac Sci Ain Chock, Phys Theor Lab, Casablanca, Morocco

来源：

PHYSICA A | 1998年 / 252卷 / 1-2期

关键词：

decorated Ising model; exact solution; ferrimagnetism; compensation temperature;

D O I：

10.1016/S0378-4371(97)00583-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We give the exact solution of a two-dimensional decorated ferrimagnetic Ising model. This model has recently been introduced by Kaneyoshi [Physica A 229 (1996) 166] as a simple ferrimagnetic model which can show more than one compensation temperature. The exact solution is obtained by mapping the model onto the spin-1/2 Ising model. We show that two compensation temperatures exist in the model when the decorating spin S is integer. However, only one compensation temperature has been found when S is half-integer. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：225 / 237

页数：13

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