Magnetic hysteresis studies of Ni1-xZnxFe2O4 prepared by non-conventional techniques

The magnetic hysteresis parameters like coercivity H-c, remanent flux density B-r, maximum flux density B-m and saturation magnetisation M-5 of Ni1-xZnxFe2O4 (x=0.2, 0.3, 0.4 and 0.5) prepared by the non-conventional flash combustion and citrate-gel decomposition techniques are studied and reported. It is observed that the coercivity decreases with increasing zinc content as well as the sintering temperature. The observed values of remanent flux density and maximum flux density are quite low. (C) 2002 Elsevier Science B.V. All rights reserved.