On the controversial measurements of the exchange-bias field in magnetic bilayers

被引：5

作者：

Rodríguez-Suárez, RL ^{[1
]}

Leao, LHV ^{[1
]}

Agular, FM ^{[1
]}

Rezende, SM ^{[1
]}

Azevedo, A ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

exchange bias; AC susceptibility; ferromagnetic resonance;

D O I：

10.1016/j.jmmm.2003.12.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ferromagnetic/antiferromagnetic interface has been characterized in several exchange-biased bilayers, by field dependent AC-susceptibility. The uniaxial (H-U) and unidirectional (H-E) anisotropy field values have been compared with those obtained by ferromagnetic resonance and DC-magnetometry. The measurements of H-E and H-U in all of the analyzed samples gave values that are consistently lower when measured by FMR than those obtained by AC- and DC- magnetometry. We assume that the discrepant values might be well explained by the coupling dependence of the unstable AF grains at the interface. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1212 / 1214

页数：3

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