Abstract
An effect of a single-phase oxidation process on the hysteresis characteristics and blocking temperature of magnetite has been carried out within the framework of the model of core-shell nanoparticle. It has been shown that an increase of the degree of oxidation of magnetite grains results in a decrease of the spontaneous magnetization and slight change of coercive field and remanent saturation magnetization to spontaneous magnetization ratio. Increase of the portion of maghemite lead to decrease of the blocking temperature. All results are in agreement with an experimental data.
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Iliushin, I., Afremov, L. (2019). Blocking Temperature and Hysteresis Characteristics of Nanoparticles of Oxidated Magnetite. In: Nurgaliev, D., Shcherbakov, V., Kosterov, A., Spassov, S. (eds) Recent Advances in Rock Magnetism, Environmental Magnetism and Paleomagnetism. Springer Geophysics. Springer, Cham. https://doi.org/10.1007/978-3-319-90437-5_15
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