Micro-eddy current damping in terbium

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Abstract
Internal friction at low temperatures arises from the stress-induced changes in magnetization generating micro-eddy currents. The magnitude of the damping decreases with deformation but increases with annealing and reaches a higher value (after an anneal at 400°C) than in the unstrained condition. This is explained in terms of recovery and recrystallization proceses and by an increase in the saturation magnetization at the recrystallization temperature.
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