MAGNETIZATION REVERSAL OF ND-FE-B SINTERED MAGNETS AT LOW-TEMPERATURES

被引：8

作者：

BARANOV, NV ^{[1
]}

SINITSYN, EV ^{[1
]}

IGNATYEV, EA ^{[1
]}

ANDREEV, SV ^{[1
]}

机构：

[1] URAL POLYTECH INST,620002 SVERDLOVSK,RUSSIA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 130卷 / 1-3期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/0304-8853(94)90666-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Barkhausen-like magnetization jumps at temperatures T < 9.5 K and the behaviour of the coercive field at low temperatures are studied in sintered Nd-Fe-B magnets with different chemical and phase compositions. The nonlinear temperature dependence of the coercive field H(c) is well described in the thermal activation model at T > 10 K. The low temperature anomalies of H(c) are discussed in terms of the quantum tunneling of the domain wall through the intergrain boundaries.

引用

页码：133 / 137

页数：5

共 10 条

[1]

Buschow K. H. J., 1988, HDB FERROMAGNETIC MA, V4

[2] MAGNETIC VISCOSITY IN DIFFERENT ND-FE-B MAGNETS [J].