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A mean field Stoner-Wohlfarth hysteresis model

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2 Author(s)
Atherton, D.L. ; Dept. of Phys., Queen''s Univ., Kingston, Ont., Canada ; Beattie, J.R.

A model of magnetic hysteresis is proposed. It is based on the Stoner-Wohlfarth coherent rotation model, but with a macroscopic mean field interaction (similar to Weiss's molecular field theory), added to represent interaction between domains. Rotation of domain magnetization vectors gives both reversible and irreversible changes in bulk magnetization. A qualitative correlation is obtained between hysteresis curves calculated using this theoretical model and experimentally measured hysteresis curves of a ferrite permanent magnet

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Magnetics, IEEE Transactions on  (Volume:26 ,  Issue: 6 )