Abstract
We analyze the possibility of obtaining M-type hexagonal ferrites of barium, strontium, and lead with multiferroid properties with the help of ceramic technology. Using the modified ceramic technology (especially pure initial raw materials, admixture of B2O3, and sintering in the oxygen atmosphere), we obtained for the first time the BaFe12O19 and SrFe12O19 samples with intense multiferroid properties at room temperature. At the same time, the employed technology does not make it possible to obtain PbFe12O19 samples exhibiting ferroelectricity. The multiferroid characteristics of experimental samples are compared with the characteristics of classical high-temperature multiferroic BiFeO3 and with the characteristics of BaFe12O19, SrFe12O19, and PbFe12O19 ferrite ceramics obtained in accordance with polymer precursor technology. We propose a mechanism explaining multiferroid properties of the hexagonal ferrite ceramic samples and note the importance of our results for applications.
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Original Russian Text © V.G. Kostishin, L.V. Panina, L.V. Kozhitov, A.V. Timofeev, A.K. Zyuzin, A.N. Kovalev, 2015, published in Zhurnal Tekhnicheskoi Fiziki, 2015, Vol. 85, No. 8, pp. 85–90.
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Kostishin, V.G., Panina, L.V., Kozhitov, L.V. et al. On synthesis of BaFe12O19, SrFe12O19, and PbFe12O19 hexagonal ferrite ceramics with multiferroid properties. Tech. Phys. 60, 1189–1193 (2015). https://doi.org/10.1134/S1063784215080150
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DOI: https://doi.org/10.1134/S1063784215080150