Production of Zinc-Doped Yttrium Ferrite Nanopowders by the Sol–Gel Method
| Autor: | I. Ya. Mittova, O. V. Al’myasheva, N. S. Perov, Anh Tien Nguyen, M. V. Berezhnaya, E. L. Viryutina, V. O. Mittova, Valentina Bessalova |
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| Rok vydání: | 2018 |
| Předmět: |
Orthoferrite
Materials science Dopant 010405 organic chemistry Coprecipitation Materials Science (miscellaneous) Spinel chemistry.chemical_element Zinc Yttrium engineering.material 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Zinc ferrite chemistry.chemical_compound chemistry engineering Ferrite (magnet) Physical and Theoretical Chemistry Nuclear chemistry |
| Zdroj: | Russian Journal of Inorganic Chemistry. 63:742-746 |
| ISSN: | 1531-8613 0036-0236 |
| DOI: | 10.1134/s0036023618060049 |
| Popis: | Zinc-doped yttrium orthoferrite nanocrystals having the perovskite structure were prepared by coprecipitation of yttrium, zinc, and iron hydroxides. The limiting zinc doping level of the yttrium ferrite to yield a ZnFe2O4 spinel second phase was determined. The yttrium orthoferrite particle size was found to be a nonmonotone function of dopant concentration. The specific magnetization of yttrium ferrite nanocrystals increases with increasing zinc doping level from 0.242 A m2/kg (in undoped YFeO3) to 1.327 A m2/kg (the ratio (1–x)YFeO3: xZn (x = 0.4)) at Т = 300 K in 1250-kA/m field. A zinc ferrite impurity in samples enhances the ferromagnetism of the material. |
| Databáze: | OpenAIRE |
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