Structure, magnetic, and electrical properties of bismuth niobates doped with d-elements: XIII. State of iron atoms in the Bi3Nb1–xFexO7–δ solid solutions
| Autor: | Nadezhda A. Zhuk, A. V. Fedorova, A. N. Nizovtsev, V. P. Lutoev, N. V. Chezhina, S. S. Shevchuk, D. A. Korolev, V. A. Butin, Boris A. Makeev |
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| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Inorganic chemistry Doping chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Magnetic susceptibility 0104 chemical sciences Bismuth Condensed Matter::Materials Science Paramagnetism chemistry.chemical_compound Crystallography Monomer chemistry Ferromagnetism Atom Condensed Matter::Strongly Correlated Electrons Solid solution |
| Zdroj: | Russian Journal of General Chemistry. 86:2575-2580 |
| ISSN: | 1608-3350 1070-3632 |
| Popis: | From the data of magnetochemical study and ESR spectra of samples of the Bi3Nb1–xFexO7–δ (х ≤ 0.06) solid solutions iron atoms in the solid solutions of cubic modification of bismuth niobate were found to be located as Fe(III) monomers and exchange-bonded Fe(III)–O–Fe(III) dimers with anti- and ferromagnetic exchange types. The exchange parameters and the distribution of monomers and dimers over the solid solution were calculated as functions of the paramagnetic atom fraction. |
| Databáze: | OpenAIRE |
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