The semi-infinite spin-3/2 Blume-Capel model

被引:20
作者
Bakchich, A
El Bouziani, M
机构
[1] Fac Sci, Dept Phys, Meknes, Morocco
[2] Fac Sci, Phys Mat Condensee Lab, El Jadida, Morocco
关键词
D O I
10.1088/0953-8984/11/32/306
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
As a function of the ratio R of bulk and surface interactions and the ratio D of bulk and surface crystal field we have determined, within the framework both of the mean-field approximation and by renormalization-group techniques, various types of phase diagram of a three-dimensional semi-infinite ferromagnetic spin-3/2 Blume-Capel model. We found that there exist four main types of phase diagram showing a variety of phase transitions associated with the surface and unusual multicritical topologies, including ordinary, extraordinary, surface and special phase transitions. Moreover, in the (R, D) plane, we determined the domains in which the system exhibits a particular type of phase diagram.
引用
收藏
页码:6147 / 6157
页数:11
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