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Magnetic Properties of Zn0.5Ni0.5Fe2 O 4: the Effect of Synthesis Route

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Abstract

Zn0.5Ni0.5Fe2 O 4 nanoparticles have been produced by glycol-thermal reaction and high-energy ball milling. The synthesis route appears to have some effects on the magnetic properties. The Mössbauer spectra indicate ordered magnetic state. The Curie temperature (T C ) was measured by zero velocity Mössbauer technique and found to be 548 ±3 K for the bulk Zn0.5Ni0.5Fe2 O 4 oxides. A higher T C = 583 ±3 K has been observed for the same compound produced by milling. This is attributed to the redistribution of Zn atoms on both tetrahedral (A) and octahedral (B) sites in the milled compounds. The magnetization measurements indicate superparamagnetic nature of the nanosized particles.

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Acknowledgments

J. Z. Msomi wishes to thank the NRF Knowledge Interchange and Collaboration (KIC) programme for the financial support (grant number 104083).

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Authors and Affiliations

  1. School of Physics, University of the Witwatersrand, P. O. Wits 2050, Johannesburg, South Africa

    J. Z. Msomi

  2. School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Durban, 4000, South Africa

    T. Moyo

  3. Department of Physics, University of Free State, Bloemfontein, 9300, South Africa

    W. D. Roos & C. J. Jafta

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  1. J. Z. Msomi
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  2. T. Moyo
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  3. W. D. Roos
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  4. C. J. Jafta
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Correspondence to J. Z. Msomi.

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Msomi, J.Z., Moyo, T., Roos, W.D. et al. Magnetic Properties of Zn0.5Ni0.5Fe2 O 4: the Effect of Synthesis Route. J Supercond Nov Magn 30, 3321–3325 (2017). https://doi.org/10.1007/s10948-016-3763-0

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  • DOI: https://doi.org/10.1007/s10948-016-3763-0

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