Crystal structure and magnetic properties of perovskite YFe1-xMnxO3 nanopowders synthesized BY CO-PRECIPITATION method
| Autor: | H.D. Chau, A. T. Nguyen, I. Ya. Mittova, Q. M. Vo, Vinh N. T. Pham, V. O. Mittova, T. Tr L. Nguyen, Tr H. Do, M. V. Berezhnaya |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Annealing (metallurgy) Coprecipitation Analytical chemistry 02 engineering and technology General Chemistry Crystal structure Coercivity 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Magnetization Lattice constant Remanence General Materials Science 0210 nano-technology Hydrate |
| Zdroj: | Solid State Sciences. 96:105922 |
| ISSN: | 1293-2558 |
| DOI: | 10.1016/j.solidstatesciences.2019.06.011 |
| Popis: | Perovskite YFe 1-x Mn x O 3 nanopowders (0.1 ≤ x ≤ 0.4) were synthesized by the co-precipation method in which the hydrate process of Y(III), Fe(III) and Mn(II) cations in boiling water took place. After annealing at 800 o C for 1 hour, the nano YFe 1-x Mn x O 3 materials had the single phase of YFe 1-x Mn x O 3 . The results showed that in the range of of Mn (II) х from 0.1 to 0.4, the materials had the indexes of crystal size (D XRD = 23.61 ÷ 22.95 nm), lattice constant (a = 5.5932 ÷ 5.6744 A, b = 7.7373 ÷ 7.5194 A, c = 5.3014 ÷ 5.2592A, and V = 229.425 ÷ 224.4012 A 3 ), saturation magnetization (M s = 2.19 ÷ 1.12 emu/g), maximum energy product ((BH) max = 2.19 ÷ 1.12 emu/g), coercive force (H c = 56.94 ÷ 150.95 Oe), remanent magnetization (M r = 0.23 – 0.50 emu/g). When increasing the amount of Mn (II), the indexes of crystal size, lattice constant (b, c, V), saturation magnetization and maximum energy product decreased; while those of coercive force, remnant magnetization and lattice constant (a) increased. |
| Databáze: | OpenAIRE |
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