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Analysis of magnetic aftereffects in nanocrystalline SmFeCo by the Preisach hysteresis model

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5 Author(s)
LoBue, M. ; IEN Galileo Ferraris & GNSM-CNR, Torino, Italy ; Cornejo, D.R. ; Basso, V. ; Missell, F.P.
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Magnetic viscosity measurements performed on nanocrystalline SmFeCo spring magnets with different Fe content are analyzed by the Preisach hysteresis model. The model gives a unified description of hysteresis and relaxation properties. Comparison between calculated and measured viscosity permits one to estimate the aftereffect activation volume υ. Calculated υ1/3 values are approximately equal to the average grain size of the hard phase

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Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 4 )