Abstract
Single-phase γ-Fe2O3 powders with a coercivity of 161–263 Oe are obtained from iron(III) hydroxide by hydrothermal synthesis followed by heat treatment. Particle size distributions are plotted, based on the TEM data. Magnetic measurements show that a significant decrease in the squareness ratio and coercivity occurs at a mean particle volume of 60000 nm3.
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Original Russian Text © M.G. Osmolovsky, O.M. Osmolovskaya, 2012, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2012, Vol. 76, No. 10, pp. 1276–1278.
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Osmolovsky, M.G., Osmolovskaya, O.M. Dimensional effects in the properties of maghemite. Bull. Russ. Acad. Sci. Phys. 76, 1146–1148 (2012). https://doi.org/10.3103/S1062873812100085
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DOI: https://doi.org/10.3103/S1062873812100085