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Polymorphism of ferroelectric, ferroelastic, superionic crystals K3Nb3B2O12 and K3-xNaxNb3B2O12статья
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: Kharitonova E.P., Voronkova V.I., Yanovskii V.K., Stefanovich S.Y.
- Журнал: Inorganic Materials
- Том: 38
- Номер: 8
- Год издания: 2002
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 819
- Последняя страница: 824
- DOI: 10.1023/A:1019782912439
- Аннотация: Data are presented on the phase transitions and physical properties of K3Nb3B2O12 (KNB) and K3-xNaxNb3B2O12 (KNNB) crystals. Detailed measurements of the dielectric permittivity, nonlinear optical properties, and electrical conductivity, as well as examination of the domain structure, demonstrate that KNB and KNNB exhibit a complex polymorphism: both have eight different polymorphs between -100 and 900 degrees C. The introduction of Na into KNB raises the transition temperatures, which makes it possible to investigate the low-temperature phases at room temperature. The high-temperature phase transition is antiferroelectric, whereas the other transitions are of a ferroelectric-ferroelastic nature. Along with complex polymorphism, KNB and KNNB exhibit superionic conductivity.
- Добавил в систему: Харитонова Елена Петровна