INTERACTION FIELDS EVALUATION IN FINE-PARTICLE SYSTEMS

A computer simulation model for estimation of the interaction fields i n fine particle systems has been developed, The method uses the experi mental delta M-alpha(H) plot, constructed from the Fourier description of the initial magnetization curve and the hysteresis loop, and the d elta M(H) plot, obtained from the remanence curves, The dependencies o f the interaction fields on the external magnetic field have been obta ined from the experimental data for a sample of a Ba-ferrite fine powd er.