Temperature-induced magnetization reversal in an amorphous ferrimagnet
- 1 April 1976
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 47 (4), 1632-1638
- https://doi.org/10.1063/1.322784
Abstract
Both temperature‐ and magnetic‐field‐induced magnetization reversals have been studied near the compensation temperature Tcomp in rf‐sputtered amorphous Gd‐Co thin films using a vibrating sample magnetometer. The net magnetization in these films goes smoothly through zero at T=Tcomp and can be switched through 180° from a metastable state opposite to the applied magnetic field direction to a stable state parallel to the field by varying either the temperature or the field strength. If the reversal occurs through a uniform rotation of the magnetization, a simple two‐magnetic‐sublattice model allows an effective anisotropy energy Keff to be determined from the switching data. Keff exhibits the same anomalous decrease near Tcomp as previously reported using magnetic resonance and static magnetization data.Keywords
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