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Synthesis of Magnetic and Multiferroic Materials from Polyvinyl Alcohol-based Gels by I.V. Lisnevskaya; I.A. Bobrova; T.G. Lupeiko is a Materials Science article available to read on EtoBox.

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This review article summarizes results on the synthesis of the magnetic materials including modified nickel ferrite (Ni 0,9 Co 0,1 Cu 0,1 Fe 1,9 O 4- yttrium iron garnet (Y 3 Fe 5 O 12 ), lanthanum-containing manganites (M х La 1-х MnO 3 (М = Pb, Ba or Sr; x = 0,3-0,35)), and multiferroics (BiFeO 3 and BiFe 0.5 Mn 0.5 O 3 ) from polyvinyl alcohol-based gels. It is shown that the ammonium nitrate accelerates destruction of organic components of xerogels and thus Ni 0,9 Co 0,1 Cu 0,1 Fe 1,9 O 4- and BiFeO 3 can be prepared at record low temperatures (100 and 250С, respectively) which are 200-300С lower compared to the process where air is used as an oxidizing agent. As for the synthesis of Y 3 Fe 5 O 12 , M х La 1-х MnO 3 and BiFe 0.5 Mn 0.5 O 3 , the presence of NH 4 NO 3 favours formation of foreign phases, which ultimately complicate reaction mechanisms and lead to the higher temperature to synthesise target products. Developed methods provide nanoscale magnetic and multiferroic materials with an average particle size of 20-50 nm.

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Author

I.V. Lisnevskaya; I.A. Bobrova; T.G. Lupeiko

Published

2016

Language

EN

Field

Materials Science (Physical Sciences)