MAGNETIC-ORDERING IN MG1+XMNXFE2-2XO4 SYSTEM

Magnetization measurements of the ferrite system Mg1+xMnxFe2-2xO4 were undertaken primarily to study variation of the saturation magnetizati on with manganese concentration and to gain information about the type of magnetic ordering. The observations indicate the existence of Yafe t-Kittel (YK) type of magnetic ordering in this system which is well s upported by results of Mossbauer effect measurements. A molecular fiel d analysis of the YK spin ordering using the three-sublattice model is shown to explain the experimental data satisfactorily.