Surface magnetostatic wave device

Stock material or miscellaneous articles – Composite – Of inorganic material

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428693, 428694GT, 428694ST, 428701, 428700, 428900, 252 6251R, 252 6256, 252 6257, 333134, 333147, 333148, 333150, 333156, 333193, 333201, 359280, 359282, 385 1, 385 6, 385130, G11B 566

Patent

active

056019351

ABSTRACT:
A surface magnetostatic wave device includes an Fe-containing garnet single crystal film grown on a gadolinium gallium garnet substrate. The crystallographic plane azimuth of the gadolinium gallium garnet substrate can be one of a (110) plane, a (100) plane, and a (211) plane. The device achieves both a reduced saturation magnetization and a reduced anisotropic magnetic field to thereby minimize the lowest frequency in the propagation band.

REFERENCES:
patent: 4544239 (1985-10-01), Shone et al.
patent: 4968954 (1990-11-01), Ryuo et al.
"Preparation of Ce-Substituted YIG Thick Film for Optical Isolator by Magnetron-Sputter Method", by T. Yoshino et al, Proceedings of The Sixth International Conference on Ferrites, Tokyo and Kyoto, Japan, 1992, pp. 1597-1600.

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