The intersublattice exchange interactions in the R2Co7B3 compounds (R equals heavy rare earth)

被引：5

作者：

Kowalczyk, A

机构：

[1] Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 171卷 / 1-2期

关键词：

intermetallic compounds; structural properties; R-Co exchange coupling;

D O I：

10.1016/S0304-8853(97)00023-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The experimental values of Curie temperatures of hexagonal R2Co7B3 (R = heavy rare earth) compounds are used to calculate the effective intersublattice exchange interactions, J(RCo), between R and Co sublattices. A mean field approximation is used. The compounds belong to the Rn+1Co3n+5B2n family. The R2Co7B3 is a combination of CaCu5 and CeCo3B2-type structures. The J(RCo) has a tendency to decrease with increasing atomic number of the rare earth partner. A similar tendency has been found for other Fe and Co-based compounds.

引用

页码：113 / 118

页数：6

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