ON THE USE OF DIELECTRIC FORMALISM IN THE REPRESENTATION OF FERROFLUID DATA

The major advances of recent times in the understanding of ferrofluids (magnetic fluids), are in no small way due to the application of diel ectric formalism in the representation of fenofluid data. The magnetic analogues of the equations of Debye, Cole-Cole, Cole-Davidson, Havril iak - Negami and Frohlich, are just a number of examples of those that have lightened the burden of workers involved in the measurement and analysis of fenofluids. In this paper it is demonstrated how these equ ations may be employed to determine the magnetic properties, in partic ular the magnetisation decay, of ferrofluids from measured data.