Abstract

A series of (Fe100−yGay)1−xBx (x=0–21 and y=9–17) films were deposited; their microstructure, soft magnetism, magnetostrictive behavior, and microwave properties were investigated. The addition of B changes the FeGaB films from polycrystalline to amorphous phase and leads to excellent magnetic softness with coercivity Oe, high 4πMs, self-biased ferromagnetic resonance (FMR) frequency of 1.85 GHz, narrow FMR linewidth (X band) of 16–20 Oe, and a high saturation magnetostriction constant of 70 ppm. The combination of these properties makes the FeGaB films potential candidates for tunable magnetoelectric microwave devices and other rf/microwave magnetic device applications.

Notes

Originally published in Applied Physics Letters, vol.91, no.18, Oct. 2007. doi: 10.1063/1.2804123

Keywords

soft magnetism, FeGaB thin films

Subject Categories

Thin films--Magnetic properties

Disciplines

Chemical Engineering | Electrical and Computer Engineering

Publisher

American Institute of Physics

Publication Date

10-2007

Rights Information

Copyright 2007

Rights Holder

American Institute of Physics

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