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Surface Acoustic Wave Magnetic Sensor using Galfenol Thin Film

TitleSurface Acoustic Wave Magnetic Sensor using Galfenol Thin Film
Publication TypeJournal Article
Year of Publication2012
AuthorsLi, W., P. Dhagat, and A. Jander
JournalIEEE Transactions on Magnetics
Volume48
Issue11
Pagination4100 - 4102
Date Published11/2012
ISSN1941-0069
Keywordsgalfenol thin film, magnetic sensor, surface acoustic wave (SAW)
Abstract

The performance of a surface acoustic wave (SAW) magnetic field sensor using galfenol (FeGa) thin film is investigated in this effort. We measure the change in the SAW velocity as a function of an externally applied magnetic field for galfenol films of varying thicknesses. A maximum change of 0.64%, greater than results reported for similar sensors, is obtained with a 500 nm thick film.

DOI10.1109/TMAG.2012.2201928
Short TitleIEEE Trans. Magn.