Evolution of the mössbauer spectra of ludwigite Co3 − x Fe x O2BO3 with substitution of iron for cobalt
| Autor: | Alexander D. Vasiliev, N. B. Ivanova, Yu. V. Knyazev, Oleg A. Bayukov, L. N. Bezmaternykh, N. V. Kazak |
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| Rok vydání: | 2013 |
| Předmět: |
Diffraction
Materials science Valence (chemistry) Solid-state physics Mössbauer effect chemistry.chemical_element engineering.material Condensed Matter Physics Electronic Optical and Magnetic Materials Ion Crystallography Nuclear magnetic resonance chemistry engineering Mossbauer spectra Cobalt Ludwigite |
| Zdroj: | Physics of the Solid State. 55:1175-1179 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783413060176 |
| Popis: | A concentration series of single crystals of iron-cobalt ludwigites Co3 − x Fe x O2BO3 (x = 0.0125, 0.025, 0.050, 0.10, 1.0) has been synthesized. The structure has been studied using X-ray diffraction and Mossbauer effect. A preferred occupation of nonequivalent crystallographic positions by iron in the ludwigite structure has been revealed. It has been found that the valence of substituting iron ions is three. It has been revealed that the structure of the γ-resonance spectrum of Co2FeO2BO3 is complicated due to a composition disorder in the system. |
| Databáze: | OpenAIRE |
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