Mannan Ali
Journal of Magnetism and Magnetic Materials 190 (1998) 199-204
The use of stress for the control of magnetic anisotropy in amorphous FeSiBC
thin films: a magneto-optic study
M. Ali, R. Watts, W.J. Karl, M.R.J. Gibbs
Department of Physics, University of Sheffield, Sheffield S3 7RH, UK
Abstract
Magnetostrictive FeSiBC amorphous thin films based on the METGLAS 2605SC composition have been produced
by RF magnetron sputtering. The magnetic properties were investigated using the magneto-optical Kerr effect, with both
point hysteresis measurements and domain imaging. Significant in-plane anisotropy is observed in the as-grown samples,
which was attributed to the residual field from the magnetron sputter source. The effects of various treatments on the
samples were investigated, including the use of forming fields, stress, and thermal processing. The deliberate introduction
of stress into these materials is found to allow excellent control of both the direction and magnitude of magnetic
anisotropy, and can also be used as a novel method for the absolute measurement of magnetostriction. The treatments
are evaluated for their potential to control anisotropy in magnetostrictive device applications.
More information and related data will be added here soon.
