the cobalt ubstitution leads to the larger particles. The saturation magnetization increased with cobalt content up to x = 0.5 and then decreased slowly on further increaseof the dopant concentration, while the coercivity ecreased continuously...

XRD data and Williamson–Hall method. Magnetic analyses showed that the coercivity

of powders decreased from 5672 Oe to 639 Oe while the saturation magnetization in-

creased from 74 emu/g to 81 emu/g with nickel substitution. The results...