Abstract
Nickel ferrite (NiFe2O4) is studied within the mean field approximation. Effects of crystal fields and exchange interactions on its magnetization are reported. NiFe2O4 exhibits ferrimagnetic phase with a second-order transition to paramagnetic phase. A first-order transition is found between magnetic ordered phases at low temperature, and a second-order transition is observed from ordered to disordered phases.
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Ouaissa, M., Benyoussef, A., Abo, G.S. et al. Effects of Crystal Fields and Exchange Interactions on Magnetic Properties of Nickel Spinel Ferrite. J Supercond Nov Magn 28, 1371–1377 (2015). https://doi.org/10.1007/s10948-014-2861-0
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DOI: https://doi.org/10.1007/s10948-014-2861-0