Origin of magnetostriction in Fe-Ga

TY - JOUR

T1 - Origin of magnetostriction in Fe-Ga

AU - Mudivarthi, C.

AU - Laver, Mark

AU - Cullen, J. R.

AU - Flatau, A. B.

AU - Wuttig, M.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - 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 [formula omitted] sample under externally applied magnetic and elastic fields revealed the existence of magnetostrictive nanoclusters spaced at [formula omitted] 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.

AB - 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 [formula omitted] sample under externally applied magnetic and elastic fields revealed the existence of magnetostrictive nanoclusters spaced at [formula omitted] 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.

U2 - 10.1063/1.3359814

DO - 10.1063/1.3359814

M3 - Journal article

SN - 0021-8979

VL - 107

SP - 09A957-09A960

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

ER -