Magnonic Bandgaps in Metalized 1-D YIG Magnonic Crystals

Author

Mruczkiewicz, Maciej ; Pavlov, Evgeny S. ; Vysotskii, Sergey L. ; Krawczyk, Michal ; Filimonov, Yuri A. ; Nikitov, S.A.

Author_Institution

Fac. of Phys., Adam Mickiewicz Univ. in Poznan, Poznan, Poland

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

3

Abstract

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.

Keywords

finite element analysis; frequency-domain analysis; garnets; magnetic thin films; magnons; spin waves; yttrium compounds; Y₃IG; coplanar waveguide antennas; frequency-domain finite element method; magnonic bandgaps; metalized 1D YIG magnonic crystals; metallic overlayer; microstripe waveguide antennas; periodically modulated thickness; theoretical model; transmitted spin-wave signal; vector network analyzer; yttrium iron garnet film; Crystals; Dispersion; Magnetic resonance; Magnetostatic waves; Magnetostatics; Photonic band gap; Surface waves; Magnonic crystals; nonreciprocity; spin waves (SWs);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2321329

Filename

6971427