Ferromagnetic resonance of thin yttrium iron garnet films near a ground plane: Parallel field
作者:
J. Barak,
R. Ruppin,
J. T. Suss,
期刊:
Journal of Applied Physics
(AIP Available online 1988)
卷期:
Volume 63,
issue 7
页码: 2372-2377
ISSN:0021-8979
年代: 1988
DOI:10.1063/1.341054
出版商: AIP
数据来源: AIP
摘要:
Parallel field ferromagnetic resonance spectra of an yttrium iron garnet film in the vicinity of a metallic ground plane are presented. The evolution of the spectra with changing film‐ground distance is traced continuously over a wide range. The following effects are found to occur at distances of less than about 500 &mgr;m: Large shifts of the resonance fields, disappearance and subsequent reappearance of lines, appearance of ‘‘forbidden’’ lines, and crossing of lines. All of these effects are confirmed by a theoretical calculation which relies on the mechanism of excitation of waves which are circulating around the sample.
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