Reversible processes in magnetization reversal of co-precipitated cobalt ferrite

Abstract

A study of the magnetization reversal process in a co-precipitated cobalt ferrite material at 300 K was carried out. The evolution of the reversible M rev and irreversible M irr magnetization components were determined by measuring sets of recoil curves from different points on the initial magnetization curve and demagnetization curve. From these data, M rev( M irr) H i curves were built, being H i the internal field of the sample. The interrelation function η=( M rev/ M irr) H i was determined as well. The results suggest that domain wall movement subject to pinning is the dominant mechanism for the reversal magnetization process in this material.