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Formation of Nd1-x (Ba1-ySry)(2-x) Cu3O7+delta solid solutions by crystal pullingстатья
Статья опубликована в высокорейтинговом журнале
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: Yao X., Goodilin E.A., Izumi T., Shiohara Y.
- Журнал: Journal of Materials Research
- Том: 16
- Номер: 2
- Год издания: 2001
- Издательство: Materials Research Society
- Местоположение издательства: United States
- Первая страница: 529
- Последняя страница: 533
- DOI: 10.1557/JMR.2001.0076
- Аннотация: With the addition of Sr into the NdO1.5-BaO-CuOz flux, series single crystals of Nd1+x (Ba1-ySry)(2-x) Cu3O7+/-delta solid solutions (Nd1113ss) were successfully grown by crystal pulling. The liquid composition control was of key importance for controlling the crystal composition, which led to a fundamental structure control. The tetragonal Nd1113ss structure was readily obtained, using a Ba-poor liquid, due to a higher Sr liquid solubility, or using a liquid with the Ba/Cu ratio around 0.33. On the other hand, a Ba-rich liquid could effectively suppress the Nd substitution at Ba sites. The higher Sr addition for achieving a stoichiometric Nd1113 compound was thermodynamically prohibited by (i) an inherently low Sr liquid solubility and (ii) the formation of BaSrCu2Oz phase in the flux at the temperature range for crystal growth. The liquid-solid-structure relation was studied.
- Добавил в систему: Гудилин Евгений Алексеевич