Abstract
The cation distribution and magnetic properties of polycrystalline ВаFe12–xSnxO19 (х = 0.0, 0.1, 0.3, 0.6, 0.9 and 1.2) ferrites have been studied for the first time by Fe57 and Sn119 Mössbauer spectroscopy. It was shown that doping of BaFe12O19 with tin is performed with limited heterovalent isomorphism according to the scheme 2Fe3+Sn4+ + Fe2+. It was found that intense heterovalent isomorphic substitutions occur in the 12k site of the BaFe12-xSnxO19 hexaferrite in the range of 0.1 < x < 0.6; less significant substitutions observed in the 4f2 and 2a sites. It was established that the heterovalent isomorphic substitution of tin for iron in BaFe12- xSnxO19 is limited by the values of x in range х = 0.6–0.9 Measurements of the magnetic parameters of the obtained samples were performed. The possibility of practical application of the synthesized ferrites is discussed.
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