Magnonic Bandgaps in Metalized 1-D YIG Magnonic Crystals

We investigate theoretically and experimentally magnonic bandgaps in a 1-D magnonic crystal consisting of a yttrium iron garnet film with periodically modulated thickness in contact with a metal. The theoretical model is based on the frequency-domain finite element method. The presented measurements...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2014-11, Vol.50 (11), p.1-3
Main Authors: Mruczkiewicz, Maciej, Pavlov, Evgeny S., Vysotskii, Sergey L., Krawczyk, Michal, Filimonov, Yuri A., Nikitov, Sergey A.
Format: Article
Language:English
Subjects:
Crystals
Dispersion
Magnetic resonance
Magnetism
Magnetostatic waves
Magnetostatics
Photonic band gap
Surface waves
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Summary:We investigate theoretically and experimentally magnonic bandgaps in a 1-D magnonic crystal consisting of a yttrium iron garnet film with periodically modulated thickness in contact with a metal. The theoretical model is based on the frequency-domain finite element method. The presented measurements of the transmitted spin-wave signal were performed with a vector network analyzer with coplanar and microstripe waveguide antennas for a magnonic crystal with and without metallic overlayer, respectively. The obtained results confirm that the presence of a metallic layer on top of the magnonic crystal shifts up the frequency of magnonic bandgaps.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2014.2321329