REAL-SPACE RENORMALIZATION-GROUP INVESTIGATION OF THE 3-DIMENSIONAL SEMI-INFINITE MIXED SPIN ISING-MODEL

被引：53

作者：

BENAYAD, N

ZITTARTZ, J

机构：

[1] Institut für Theoretische Physik, Universität zu Köln, Köln 41

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 81卷 / 01期

关键词：

D O I：

10.1007/BF01454221

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Within a real-space renormalization group framework we study the three-dimensional semi-infinite mixed spin Ising model (spins σ=1/2 and S=1). The bilinear (Ks) and the biquadratic (LS) interactions on the surface might be different from the bulk ones KB and LB. The parameter space is four dimensional. We find 26 fixed points describing a large variety of critical behaviour. The effect of LB and LS on the surface transition is investigated. © 1990 Springer-Verlag.

引用

页码：107 / 112

页数：6