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Anisotropic strain of BaZrO3, BaCeO3 and Y2O3 nanoinclusions in a YBa2Cu3O7-x epitaxial film matrix and its relation to the oxygen content of the superconductorстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 ноября 2012 г.
- Авторы: Samoilenkov S.V., Boytsova O.V., Amelichev V.A., Kaul A.R.
- Журнал: Superconductor Science and Technology
- Том: 24
- Номер: 5
- Год издания: 2011
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- DOI: 10.1088/0953-2048/24/5/055003
- Аннотация: Accurate x-ray diffraction studies of epitaxial (001) YBa 2Cu 3O 7-x films with inclusions of BaZrO 3, BaCeO 3 and Y 2O 3 phases have been performed. They revealed that all these inclusions are compressed along their c-axis and expanded in the ab-plane. The tetragonal distortion observed increases in the row Y 2O 3-BaCeO 3-BaZrO 3. It is suggested that an unusually large decrease of YBCO c-axis lattice parameter during the post-deposition oxygenation step is the cause of the anisotropic strain. The experimental observations on reduced and reoxygenated samples support this suggestion. The reversible character of nano-inclusions’ strain appearing due to change of YBa 2Cu 3O 7-x oxygen content is demonstrated. © 2011 IOP Publishing Ltd.
- Добавил в систему: Бойцова Ольга Владимировна