The diluted mixed-spin transverse Ising system with longitudinal crystal field interactions

被引：12

作者：

Benayad, N ^{[1
]}

Fathi, A ^{[1
]}

Zerhouni, R ^{[1
]}

机构：

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

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 222卷 / 03期

关键词：

mixed spins; site dilution; transverse field; crystal field interactions;

D O I：

10.1016/S0304-8853(00)00568-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The diluted mixed-spin transverse Ising system consisting of spin-1/2 and spin-1 with crystal held interactions is studied by the use of an effective field method within the framework of a single-site cluster theory. The state equations are derived using a probability distribution method based on the use of Van der Waerden identities. The complete phase diagrams are investigated in the case of the honeycomb lattice. Ln particular, the influence of the crystal field interactions and the concentration of magnetic sites are examined in detail. We find that the system exhibits a variety of interesting features, especially near the percolation threshold. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：355 / 367

页数：13

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