Spin waves in exchange-biased Fe/FeF2

被引：63

作者：

Miltényi, P

Gruyters, M

Güntherodt, G

Nogués, J

Schuller, IK

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany

[2] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain

[3] Univ Calif San Diego, Dept Phys 0319, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.59.3333

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The unidirectional anisotropy in exchange biased Fe/FeF2 bilayers is measured by Brillouin light scattering (BLS) from spin waves in the Fe layer. This technique, where the ferromagnetic layer is always saturated, allows for a straightforward, accurate determination of the exchange bias field. The value obtained from BLS is 25% larger than the one obtained from conventional magnetometry. Moreover, a large broadening of the spin-wave mode due to the presence of the antiferromagnet is observed. From the held dependence of this broadening we conclude that the mode broadening is unidirectional. [S0163-1829(99)00506-8].

引用

页码：3333 / 3336

页数：4

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