Enhanced Nonreciprocity of Magnetostatic Surface Waves in Yttrium-Iron-Garnet Films Deposited on Silicon Substrates by Ion-Beam Evaporation

Propagation of magnetostatic surface waves (MSSW) in yttrium-iron-garnet films deposited by ion-beam evaporation on silicon substrates and consisting of two layers-the buffer layer and the main layer-was studied. It is shown that exchange coupling and surface spin pinning at the interface of the mai...

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Bibliographic Details
Published in:IEEE magnetics letters 2017, Vol.8, p.1-5
Main Authors: Sakharov, Valentin Konstantinovich, Khivintsev, Yuri Vladimirovich, Vysotskii, Sergey Lvovich, Stognij, Alexander Ivanovich, Filimonov, Yuri Alexandrovich
Format: Article
Language:English
Subjects:
Buffer layers
magnetic and spintronic materials
Magnetic films
Magnetic resonance
Magnetostatic waves
Magnetostatics
magnonics
microwave devices
Microwave magnetics
Silicon substrates
Substrates
Surface waves
Yttrium-iron garnet
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Summary:Propagation of magnetostatic surface waves (MSSW) in yttrium-iron-garnet films deposited by ion-beam evaporation on silicon substrates and consisting of two layers-the buffer layer and the main layer-was studied. It is shown that exchange coupling and surface spin pinning at the interface of the main and buffer layers can enhance nonreciprocity of MSSW propagation and can result in the appearance of anomalous regions in the dispersion curves caused by spin-wave resonances across the film thickness.
ISSN:1949-307X
1949-3088
DOI:10.1109/LMAG.2017.2659638