Origin of magnetostriction in Fe–Ga
- 1 May 2010
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 107 (9), 09A957
- https://doi.org/10.1063/1.3359814
Abstract
This paper investigates the origin of large magnetostriction in Fe–Ga alloys using small-angle neutron scattering (SANS) and Kerr microscopy. The SANS data for a single-crystal, electron irradiated, and quenched Fe 81 Ga 19 sample under externally applied magnetic and elastic fields revealed the existence of magnetostrictive nanoclusters spaced at ∼ 15 nm apart that have a different magnetization than the A2 matrix. Combining the SANS results and the magnetization orientation obtained from the magnetic domain images using a Kerr microscope, it appears that the nanoclusters contribute significantly to the macroscopic magnetostriction.Keywords
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