Love-type magneto-surface-acoustic-wave in multilayered highly magnetostrictive films separated by insulating layers

Author

Inoue, M. ; Tsuboi, Y. ; Yokokawa, N. ; Fujii, T.

Author_Institution

Dept. of Electr. Eng., Osaka Prefectural Coll. of Technol., Japan

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1465

Lastpage

1467

Abstract

An analytical study of the propagation properties of a Love-type magneto-surface-acoustic-wave (MSAW) in highly magnetostrictive alloy films separated by insulating layers is presented. It is found that a Love-type MSAW propagating in multilayered media exhibits large velocity controllability with applied magnetic field and small amounts of propagation loss arising from eddy currents. The range of velocity controllability approaches the limiting values obtained in nondissipative magnetic insulators when the number of the insulating layers N is increased (N⩾15 in the present case). These characteristics are very favorable for constructing MSAW devices with highly functional characteristics

Keywords

Love waves; eddy currents; magnetic thin films; magnetoacoustic effects; magnetostriction; surface acoustic waves; eddy currents; insulating layers; magneto-surface-acoustic-wave; multilayered highly magnetostrictive films; propagation loss; velocity controllability; Controllability; Eddy currents; Insulation; Magnetic analysis; Magnetic fields; Magnetic films; Magnetic properties; Magnetic separation; Magnetostriction; Propagation losses;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104413

Filename

104413