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On the stability region and structure of the Nd1+xBa2-xCu3Oy solid solutionстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 ноября 2013 г.
- Авторы: Goodilin E.A., Oleynikov N.N., Antipov E.V., Shpanchenko R.V., Balakirev V.G., Tretyakov Y.D.
- Журнал: Physica C: Superconductivity and its Applications
- Том: 272
- Номер: 1-2
- Год издания: 1996
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 65
- Последняя страница: 78
- DOI: 10.1016/S0921-4534(96)00556-4
- Аннотация: We studied the low and upper stability boundaries and the structure evolution of the Nd1+xBa2-xCu3Oz solid solution along its single-phase field. It was found that in oxygen the limit of the solid solution extends up to Nd1.9Ba1.1Cu3Oz at 950-1050 degrees C while at lower and higher temperatures it becomes narrower. In nitrogen atmosphere the substitution range is much smaller and x does not exceed 0.3 at 800 degrees C. The replacement of Ba2+ by Nd3+ is accompanied by decreasing both a and c lattice constants of quenched samples. At the same time in oxygen at x greater than or equal to 0.6 ordering phenomena occur leading to the orthorhombic distortion of the tetragonal subcell. A model of the solid solution crystal structure with a B-centered unit cell and lattice parameters a = 2a(sub), b = b(sub) and c = 2c(sub) was suggested and refined.
- Добавил в систему: Гудилин Евгений Алексеевич