REENTRANT FERROMAGNETISM IN 2D AND 3D ISING-MODEL WITH RANDOM NEAREST-NEIGHBOR INTERACTIONS

被引：4

作者：

TOTH, L

TOTHOVA, M

机构：

[1] Department of Theoretical Physics and Geophysics, Faculty of Natural Sciences, P. J. Safarik University, CS-041 54 Košice

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 02期

关键词：

D O I：

10.1109/20.312436

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present the study of phase diagrams in spin-1/2 Ising model for honeycomb, square, triangular and simple-cubic lattices using the two-spin cluster approximation. We consider nearest- neighbour ferromagnetic exchange interactions J with concentration p and exchange interactions alphaJ (\alpha\ < 1) with concentration (1 - p). The phase diagrams in alpha - t(c)-1 plane show re-entrant behavior in certain ranges of concentration

引用

页码：887 / 889

页数：3

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