Abstract
Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder has been fabricated using the sol-gel method, and the powders’ crystallographic and magnetic properties as related to the annealing temperature were investigated. Using X-ray diffraction, we confirmed the formation of crystallized particles in the Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder. The Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder annealed at temperatures above 523 K showed a single phase with a spinel structure. From X-ray diffraction and scanning electron microscopy, this study learned that the size of the ferrite powder grains increased as the annealing temperature was increased. Using Mössbauer spectroscopy and vibrating sample magnetometry, we learned that the magnetic properties of the Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder changed from superparamagnetic to ferrimagnetic as the annealing temperature was increased. Also, an increase in the annealing temperature yielded increases in the coercivity and the remanent magnetization. The minimum coercivity and remanent magnetization of Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder were 49.59 Oe and 0.038 emu/g, respectively.
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Kang, J.Y., Kwon, W.H., Lee, S.W. et al. Annealing effects on the crystal growth and the magnetic properties of Mn0.8Zn0.1Ni0.1Fe2O4 ferrite powder grown by using the sol-gel method. Journal of the Korean Physical Society 60, 795–799 (2012). https://doi.org/10.3938/jkps.60.795
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DOI: https://doi.org/10.3938/jkps.60.795