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 Fe81Ga19 sample under externally applied magnetic and elastic fields revealed the existence of magnetostrictive nanoclusters spaced at similar to 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.
|Journal||Journal of Applied Physics|
|Publication status||Published - 2010|
|Event||Joint MMM-Intermag Conference - Washington, DC|
Duration: 1 Jan 2010 → …
Conference number: 11th
|Conference||Joint MMM-Intermag Conference|
|Period||01/01/2010 → …|
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- Materials and energy storage
- Superconducting materials