Nanocrystalline manganese ferrite of MnxFe3-xO4 with x = 0, 0.2, 0.4 and 0.6 was prepared by chemical co-precipitation method. The as prepared samples were characterized by XRD and magnetization. X-ray diffraction patterns confirmed the inverse spinel structure of ferrites particles with size ranged from 12 to 30 nm. The Magnetic properties such as typical saturation magnetization (Ms), remanence magnetization (Mr) and coercive field (Hc) measured at room temperature along with doped at different Mn contents show that the maximum Mn ions content doped into ferrite lattices is x = 0.4 which agree well with the magnetic susceptibility (χM) measurements and the high magnetic parameters.
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