EXCHANGE COUPLING AND COERCIVITY IN DY3CO11B4 AND ER3CO11B4 COMPOUNDS

被引：9

作者：

KOWALCZYK, A ^{[1
]}

IVANOV, V ^{[1
]}

BASZYNSKI, J ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST GEN PHYS,MOSCOW 117942,RUSSIA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 146卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(94)01675-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties (magnetization, coercivity and exchange interactions) of Dy3Co11B and Er3Co11B compounds have been studied. The saturation moments at 4.2 K are 19.1 and 14.2 mu(B)/f.u. for Dy3Co11B4 and Er3Co11B4, respectively. The temperature dependence of the coercivity (H-c) for the Er3Co11B4 compound is nearly linear when the logarithm of H, is plotted versus T. This linear dependence has been explained by a thermally activated process of domain wall motion. The molecular field approximation was applied to calculate the intersublattice exchange interactions considering the experimental Curie temperature of the investigated compounds.

引用

页码：182 / 186

页数：5

共 24 条

[1] EVIDENCE IN RARE-EARTH (R)-TRANSITION METAL (M) INTERMETALLICS FOR A SYSTEMATIC DEPENDENCE OF R-M EXCHANGE INTERACTIONS ON THE NATURE OF THE R-ATOM [J].