Real-space renormalization group investigation of the three-dimensional semi-infinite mixed spin ising model期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Real-space renormalization group investigation of the three-dimensional semi-infinite mixed spin ising model

Authors:	N. Benayad J. Zittartz

Affiliation:	(1) Institut für Theoretische Physik, Universität zu Köln, D-5000 Köln 41, Federal Republic of Germany;(2) Present address: Faculté des Sciences I, Univérsité Hassan II, Casablanca, Morocco;(3) Laboratoire de Magnétisme, Université de Rabat, Morocco

Abstract:	Within a real-space renormalization group framework we study the three-dimensional semi-infinite mixed spin Ising model (spins =1/2 andS=1). The bilinear (K_s) and the biquadratic (L_S) interactions on the surface might be different from the bulk onesK_B andL_B. The parameter space is four dimensional. We find 26 fixed points describing a large variety of critical behaviour. The effect ofL_B andL_S on the surface transition is investigated.Supported by the agreement of cooperation between the DFGW. Germany and the CNR-Maroc

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