Abstract
Small (≈ 350Å) and nearly spherical particles of γ-Fe2O3 were studied by XRD, TEM, Mössbauer spectra and RT magnetization measurements. The effective interparticle interactions for a number of γ-Fe2O3 - Al2O3 mixtures with different concentrations of magnetic phase were estimated from IRM and DCD remanence measurements, and from Fourier analysis of initial magnetization and hysteresis curves. The non-monotonous dependence of the interactions with decreasing concentration of magnetic phase was observed. It was related to possible changes in the domain status of some of the particles with increasing the distances between them.
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© 1997 Springer Science+Business Media Dordrecht
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Grigorova, M. et al. (1997). Hysteresis Loops and Remanence Curves of Small γ-Fe2O3 Particles with Different Packing Densities. In: Hadjipanayis, G.C. (eds) Magnetic Hysteresis in Novel Magnetic Materials. NATO ASI Series, vol 338. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5478-9_37
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DOI: https://doi.org/10.1007/978-94-011-5478-9_37
Publisher Name: Springer, Dordrecht
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