RENORMALIZATION-GROUP CALCULATION OF THERMODYNAMIC FUNCTIONS IN DISORDERED ISING SYSTEMS

被引：2

作者：

BOECHAT, B

DEMELLO, EVL

CONTINENTINO, MA

机构：

[1] Universidade Federal Fluminense, Niteroi, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1993年 / 124卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(93)90080-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the behaviour of the specific heat and the spontaneous magnetisation in bond disordered Ising ferromagnetic systems. We use a real space renormalisation group approach which allows the probability distributions to evolve along the renormalisation process. Such statistical treatment provides a natural description of various kinds of magnetic disorder and gives a good approximation for d-dimensional systems. Our method is conceived to deal with different exchange coupling magnitudes, and therefore is suitable to deal with amorphous and dilute disordered magnets.

引用

页码：135 / 142

页数：8

共 29 条

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