Abstract
The effects of heat treatment on the magnetic properties of amorphous ribbons under tensile stress are studied. In this study, we focus on two properties; coercive force and the stress-magnetization change due to tensile stress. The effects on these two properties of stress relaxation by heat treatment are demonstrated, and effects on them of samples heattreated under a magnetic field are also studied. The coercive force decreases at first when a small tensile stress is applied, but thereafter increases with the application of a larger stress. These properties can be explained by the change in the domain structure. The magnetization change due to an applied tensile stress under a constant magnetic field can be shown to be composed of two effects, namely reversible and irreversible magnetization change. The effects of heat treatment on these two changes are also investigated, and are also explained by the change in the domain structure.
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