Abstract
Implications of the breakdown and oxidation processes for the magnetic properties of finegrained titanomagnetites are theoretically studied in the model of two-phase nanoparticle system. It is shown that the decomposition of titanomagnetites is accompanied by the increase in the blocking temperature, coercive force, spontaneous saturation magnetization, and chemical magnetization, whereas the remanent chemical magnetization behaves nonmonotonically and may undergo self-reversal. The single-phase oxidation of titanomagnetites reduces the coercive force and saturation magnetization and thus leads to the growth in chemical magnetization.
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Original Russian Text © L.L. Afremov, I.G. Il’yushin, S.V. Anisimov, 2015, published in Fizika Zemli, 2015, No. 5, pp. 3–11.
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Afremov, L.L., Il’yushin, I.G. & Anisimov, S.V. Modeling the implications of chemical transformations for the magnetic properties of a system of titanomagnetite nanoparticles. Izv., Phys. Solid Earth 51, 613–621 (2015). https://doi.org/10.1134/S1069351315050018
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DOI: https://doi.org/10.1134/S1069351315050018