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Remanence loss in γ-Fe2O3tapes as related to reptation, viscosity, and print-through

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1 Author(s)
Flanders, P.J. ; University of Pennsylvania, Philadelphia, Pa

The reptation and magnetic viscosity in γ-Fe2O3tape as a function of an applied field is found by using a rotating sample magnetometer (RSM) which measures the decrease in remanent magnetization MR, as the sample spins in a field at different frequencies. A modified RSM is used to find the decrease in MRwhen a reverse field is repeatedly applied along a stationary axis. Reptation is found only when the sample rotates in a field. Magnetic viscosity effects peak at fields near the coercive field and scale with print-through in tapes.

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Magnetics, IEEE Transactions on  (Volume:22 ,  Issue: 3 )