A model for magnetic ordering in inhomogeneous amorphous RE-Fe-Al alloys

被引：3

作者：

Wang, L

Ding, J ^{[1
]}

Li, Y

Feng, YP

Phuc, NX

Dan, NH

机构：

[1] Natl Univ Singapore, Dept Mat Sci, Singapore 119260, Singapore

[2] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

[3] NCST, Inst Sci Mat, Hanoi, Vietnam

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷

关键词：

molecular field theory; amorphous systems-alloys; superparamagnetism; rare earth-metals;

D O I：

10.1016/S0304-8853(00)00941-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic measurements on amorphous RE60Fe30Al10 with RE = Nd and Y indicated the presence of clusters in amorphous rare earth (RE) and transition metal alloys. A model for magnetic ordering was proposed for the inhomogeneous amorphous ferromagnets. This model was based on Langevin function of small magnetic clusters with strong interactions. The strong interactions could result in ferromagnetic coupling of the clusters below its critical temperature (T-c(system)), therefore termed as cluster ferromagnetism. The magnetization curves of the samples could be wen described with the cluster ferromagnetic model. (C) 2001 Elsevier Science BY. All rights reserved.

引用

页码：1504 / 1506

页数：3

共 4 条

[1] The coercivity of rapidly quenched Nd60Fe30Al10 alloys [J].