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Crystal structure of the metastable cubic beta(ms) phase of La2Mo2O9 single crystal at T=33 Kстатья
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: Alekseeva O.A., Verin I.A., Sorokina N.I., Novikova N.E., Kolesnikova D.S., Voronkova V.I.
- Журнал: Crystallography Reports
- Том: 55
- Номер: 2
- Год издания: 2010
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 199
- Последняя страница: 205
- DOI: 10.1134/S1063774510020057
- Аннотация: The structure of the cubic metastable beta(ms) phase of La2Mo2O9 single crystal has been precisely investigated by X-ray diffraction at 33 K for the first time. The measurement of the unit-cell parameter of this crystal in the range from room temperature to 33 K showed that the unit-cell parameter and volume change continuously in this range. The crystal has a similar structure at T = 33 K and at room temperature. A local lowering of the symmetry for La and Mo atoms, caused by their displacement, is confirmed, and a similar displacement (which was not observed at room temperature) is revealed for O(1) atoms. The thermal parameters for O(2) and O(3) atoms do not change with a decrease in temperature, in contrast to the thermal parameters of Mo, La, and O(1) atoms. This fact indicates that the O(2) and O3 atoms in this crystal are statically disordered.
- Добавил в систему: Воронкова Валентина Ивановна