Magnetostatic wave propagation characteristics at low temperatures

Author

Yan, Hua ; Awai, Ikuo

Author_Institution

Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Ube, Japan

Volume

33

Issue

3

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

2342

Lastpage

2347

Abstract

Low temperature characteristics are studied for the linear and nonlinear magnetostatic wave (MSW) propagation in yttrium iron garnet (YIG) films theoretically and experimentally. It is confirmed that the saturation magnetization is the only factor which governs the propagation characteristics at low temperatures. Moreover, the ferromagnetic resonance (FMR) linewidth ΔH of a YIG film is measured from the propagation loss and delay of MSW, and it is found that the ΔH becomes larger at low temperatures

Keywords

delay lines; ferromagnetic resonance; garnets; magnetic epitaxial layers; magnetic microwave devices; magnetisation; magnetostatic surface waves; magnetostatic wave devices; magnetostatic waves; yttrium compounds; 2 to 5 GHz; 300 K; 77 K; MSW delay; YFe5O12; YIG; YIG films; delay line; ferromagnetic resonance linewidth; linear magnetostatic wave propagation; low temperature; magnetostatic backward volume wave; magnetostatic surface wave; nonlinear magnetostatic wave propagation; propagation loss; saturation magnetization; Garnet films; Iron; Loss measurement; Magnetic resonance; Magnetostatic waves; Propagation delay; Propagation losses; Saturation magnetization; Temperature; Yttrium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.573853

Filename

573853