Field cooling effect on magnetic anisotropy of amorphous Fe91.4Zr86alloy
- 1 April 1986
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 16 (4) , 507-513
- https://doi.org/10.1088/0305-4608/16/4/014
Abstract
The magnetic anisotropy induced by magnetic field cooling is examined by magnetic torque measurements for an amorphous Fe91.4Zr8.6 alloy. Unidirectional magnetic anisotropy is induced by field cooling down to a temperature lower than the spin freezing temperature Tf and by a simple application of strong magnetic field at a temperature lower than Tf. A large rotational hysteresis loss is observed and it decreases markedly with an increase in temperature and disappears at the frustrated spin freezing temperature of about 50K. These results support the idea that the amorphous Fe91.4Zr8.6 alloy has exchange anisotropy arising from the existence of frustrated spins in the ferromagnetic matrix.Keywords
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