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Mixing Y(RE)BCO (RE = Nd, Sm) superconductors by crystal pulling methodстатья
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: 9 ноября 2013 г.
- Авторы: Yao X., Goodilin E., Sato H., Shiohara Y.
- Журнал: APPLIED SUPERCONDUCTIVITY
- Том: 5
- Номер: 1-6
- Год издания: 1997
- Первая страница: 11
- Последняя страница: 19
- DOI: 10.1016/S0964-1807(98)00028-3
- Аннотация: Y1-xRExBa2Cu3O7-delta [Y(RE)BCO or REsBCO] superconductors were prepared by the crystal pulling method. The RE mixing content x in the crystal can be effectively controlled by the processing temperature. With an increase in processing temperature, the RE concentration in the liquid increased, which resulted in the higher RE substitution content in single crystals. The higher critical temperatures T-c,above 92 K could be obtained by an optimized oxygenation treatment. The T-c,value of Y(RE)BCO tends to be insensitive to the growth atmosphere of the oxygen partial pressure under a certain limit of the RE content. The Y.727Nd.273Ba2Cu3O7-delta and the Y.941Sm.059Ba2Cu3O7-delta samples show values of the critical current density J(c), are about 2 x 10(4) Acm(-2) at 1.2 T and 2.8 x 10(4) Acm(-2) at 1.1T for H parallel to c, respectively, indicating that mixing REs 123 have obvious effects on J(c)-H curves since RE ions are likely to substitute at both Y2+ and Ba2+ sites. (C) 1998 Elsevier-Science Ltd. All rights reserved.
- Добавил в систему: Гудилин Евгений Алексеевич