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Magnetic and Structural Properties of Nanocrystalline Cobalt-Substituted Magnesium–Manganese Ferrite

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Abstract

A series of Mg0.5Mn0.5Fe2−x Co x O4 (0 ≤ x ≤ 0.5) samples were synthesized by citrate precursor method. The impact of replacing Fe ions by Co on the structural parameters and magnetic properties of the system was investigated utilizing X-ray diffraction and MH magnetic measurements at room and low temperatures. Phase analysis revealed a single-phase spinel for all samples, and cation distribution was suggested using data of magnetization loops, Rietveld analysis and then confirmed by Bertaut method. Both saturation magnetization and coercivity increase with Co content up to x = 0.3, then decrease slightly. The variation of lattice parameter, the interatomic distances, and the bond angles upon increasing the Co content was determined and then correlated with cation distribution and the magnetic behavior.

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Correspondence to Mohamed Bakr Mohamed.

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We declare that this is an original manuscript, and has not submitted to any other scientific journal inside the country or outside. In addition, we declare that this article has been written by us (the stated authors). We are aware of its content and approve its submission. We confirm that this manuscript (if accepted), will not be published in the same form, in any language, without the written consent of the publisher.

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Heiba, Z.K., Mohamed, M.B., Wahba, A.M. et al. Magnetic and Structural Properties of Nanocrystalline Cobalt-Substituted Magnesium–Manganese Ferrite. J Supercond Nov Magn 28, 2517–2524 (2015). https://doi.org/10.1007/s10948-015-3069-7

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  • DOI: https://doi.org/10.1007/s10948-015-3069-7

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