Comparison of Alternative Techniques for Characterizing Magnetostriction and Inverse Magnetostriction in Magnetic Thin Films

Author

Raghunathan, A. ; Snyder, J.E. ; Jiles, D.C.

Author_Institution

Wolfson Centre for Magnetics, Cardiff Univ., Cardiff, UK

Volume

45

Issue

9

fYear

2009

Firstpage

3269

Lastpage

3273

Abstract

We compare the direct and inverse techniques of measuring magnetostriction in magnetic thin films. We chose a set of four magnetic thin film samples (Co₉₅Fe₅, Co₆₀Fe₂₀B₂₀, Ni₆₅Fe₁₅Co₂₀, and Ni₈₀Fe₂₀) for the measurements, representing positive and negative magnetostriction and having saturation magnetostriction of magnitudes ranging from 10^-7 to 10^-5. We made the direct measurements on a high-precision optical cantilever beam system, and we carried out the inverse magnetostriction measurements on a nondestructive inductive B-H looper with three-point bending stage.

Keywords

bending; boron alloys; cantilevers; cobalt alloys; iron alloys; magnetic thin films; magnetostriction; nickel alloys; Co₆₀Fe₂₀B₂₀; Co₉₅Fe₅; Ni₆₅Fe₁₅Co₂₀; Ni₈₀Fe₂₀; high-precision optical cantilever beam system; inverse magnetostriction; magnetic thin film; magnetostriction; nondestructive inductive B-H looper; saturation magnetostriction; three-point bending stage; $Bhbox{-}H$ looper; magnetostriction; thin films;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2022327

Filename

5208521