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Sol-gel formation and properties of nanocrystals of solid solutions Y1 − x Ca x FeO3 |
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| Authors: | Nguyen Anh Tien I Ya Mittova D O Solodukhin O V Al’myasheva V O Mittova S Yu Demidova |
| Institution: | 1. Ho Chi Minh City Pedagogical University, Ho Chi Minh City, Vietnam 2. Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006, Russia 3. St. Petersburg State Institute of Technology (Technical University), Moskovskii pr. 26, St. Petersburg, 190013, Russia 4. Burdenko Voronezh State Medical Academy, ul. Studencheskaya 10, Voronezh, 394036, Russia |
| Abstract: | Nanopowders of ferrites Y1 ? x Ca x FeO3 (x = 0.1, 0.2, and 0.3) were prepared by chemical coprecipitation of cations Y3+, Ca2+, and Fe3+ by an aqueous sodium carbonate solution. It was found that an increase in the calcium content leads to a decrease in the size of nanocrystals, the average size of which is 25–50 nm. Doping of yttrium orthoferrite with the doubly charged calcium ion enhances magnetization and decreases coercivity in samples. |
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