Role of Interactions in Magnetic Tapes

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Abstract
Thermodynamic and kinetic considerations applied to an assembly of single domain particles have resulted in a single set of equations that describe such diverse processes as hysteresis, time effects, thermoremanent magnetization, and anhysteretic magnetization. An important feature of this work is the inclusion of particle interactions in a consistent manner through the thermodynamic and kinetic formalism. The mechanism of magnetic processes is attributed completely to the thermal activation of moment reversal and not to interactions. Interactions, however, substantially modify the magnitude of the effects.