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Structural Transformations in (La1-xBaxMn0.98Fe0.02O3+delta)-Fe-57 (x=0.05-0.20)статья
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: 18 июля 2013 г.
- Авторы: Sedykh V.D., Rusakov V.S., Zver'kova I.I., Dubovitskii A.V., Kulakov V.I.
- Журнал: Physics of the Solid State
- Том: 54
- Номер: 3
- Год издания: 2012
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 593
- Последняя страница: 600
- DOI: 10.1134/S1063783412030274
- Аннотация: A systematic investigation of the structural transformations in (La1 - xBaxMn0.98Fe0.02O3 + delta)-Fe-57 (x = 0.05-0.20) at different Ba concentrations and under different heat treatment conditions (annealing in vacuum and in air) has been performed using the methods of Mossbauer spectroscopy and X-ray diffractometry. The samples have been synthesized by the sol-gel in air at a temperature of 1100 degrees C. For the studied range of barium concentrations, the synthesis results in the formation of a rhombohedral structure with space group R $(3) over bar $c. It has been shown that the annealing in vacuum leads to the transformation of the rhombohedral phase into a mixture of three phases, namely, PnmaI, PnmaII*, and PnmaII, for all the barium concentrations under investigation. The content of the PnmaI phase increases with an increase in the barium concentration. However, even at a concentration of 20 at % Ba, the phases PnmaII and PnmaII* remain in small amounts in the sample.
- Добавил в систему: Русаков Вячеслав Серафимович