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Oxygen-conducting compounds with La2Mo2O9 structure in the ternary system La2Mo2O9-Sm2W2O9-Sm2Mo2O (9) (+) : Synthesis and 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: 14 октября 2014 г.
- Авторы: Voronkova V.I., Kharitonova E.P.
- Журнал: Crystallography Reports
- Том: 59
- Номер: 4
- Год издания: 2014
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 574
- Последняя страница: 579
- DOI: 10.1134/S1063774514040208
- Аннотация: Polycrystalline samples in the ternary system La2Mo2O9-Sm2W2O9-Sm2Mo2O (9) (+) were synthesized in air. The region of the existence of compounds with the lanthanum molybdate (La2Mo2O9) structure in this system was determined. The polymorphism of the synthesized compounds was studied. Doping with samarium or with samarium and tungsten was shown to lead to the suppression of the transition between the monoclinic and cubic phases alpha -> beta and the appearance of the transition beta (ms) -> beta between two cubic phases. In samples with a high samarium content, the phase transition beta (ms) -> beta manifests itself as significant anomalies in the temperature dependences of the dielectric permeability and electric conductivity. An increase in the concentration of samarium in the samples leads to a substantial decrease in the conductivity compared with the nondoped compound La2Mo2O9.
- Добавил в систему: Харитонова Елена Петровна