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The Bi2O3-Fe2O3-Sb2O5 system phase diagram refinement, Bi3FeSb2O11 structure peculiarities and magnetic propertiesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 июня 2015 г.
- Авторы: Egorysheva A.V., Ellert O.G., Gajtko O.M., Efimov N.N., Svetogorov R.D., Zubavichus Y.V., Grigorieva A.V.
- Журнал: Journal of Solid State Chemistry
- Том: 225
- Год издания: 2015
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Первая страница: 278
- Последняя страница: 284
- DOI: 10.1016/j.jssc.2014.12.032
- Аннотация: The refinement of the Bi2O3–Fe2O3–Sb2O5 system phase diagram has been performed and the existence of the two ternary compounds has been confirmed. The first one with a pyrochlore-type structure (sp. gr. Fd 3̄m) exists in the wide solid solution region, (Bi2−xFex)Fe1+ySb1−yO7±δ, where x=0.1–0.4 and y=−0.13–0.11. The second one, Bi3FeSb2O11, corresponds to the cubic KSbO3-type structure (sp. gr. Pn 3̄) with unit cell parameter a=9.51521(2) Å. The Rietveld structure refinement showed that this compound is characterized by disordered structure. The Bi3FeSb2O11 factor group analysis has been carried out and a Raman spectrum has been investigated. According to magnetization measurements performed at the temperature range 2–300 K it may be concluded that the Bi3FeSb2O11 magnetic properties can be substantially described as a superposition of strong short-range antiferromagnetic exchange interactions realizing inside the [(FeSb2)O9] 3D-framework via different pathways.
- Добавил в систему: Григорьева Анастасия Вадимовна