Propagating spin wave spectroscopy in a permalloy film: A quantitative analysis

被引：110

作者：

Bailleul, M ^{[1
]}

Olligs, D ^{[1
]}

Fermon, C ^{[1
]}

机构：

[1] CEA Saclay, Serv Phys Etat Condense, DRECAM DSM, F-91191 Gif Sur Yvette, France

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 05期

关键词：

D O I：

10.1063/1.1597745

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the microwave response of micrometer-wide antennas inductively coupled to a 30 nm thick permalloy film. We show that the self-inductance of a single antenna measures the coupling between the exciting current and the spin wave modes of the film. On the other hand, the signal transmitted to a second, distant antenna is used to observe the free relaxation law of a magnetostatic wave packet. All measurements, performed over a frequency range of 1-20 GHz, are quantitatively consistent with magnetostatic wave theory combined with Gilbert formulation of the damping. (C) 2003 American Institute of Physics.

引用

页码：972 / 974

页数：3

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