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A NEW WAY OF SYNTHESIS AND CHARACTERIZATION OF SUPERCONDUCTING OXYFLUORIDE SR2CU(O,F)(4+DELTA)статья
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: ARDASHNIKOVA EI, LUBARSKY SV, DENISENKO DI, SHPANCHENKO RV, ANTIPOV EV, VANTENDELOO G.
- Журнал: Physica C: Superconductivity and its Applications
- Том: 253
- Номер: 3-4
- Год издания: 1995
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 259
- Последняя страница: 265
- DOI: 10.1016/0921-4534(95)00540-4
- Аннотация: Superconducting Cu mixed oxyfluoride, Sr,Cu(O, F)(4+delta), was Obtained via fluorination of Sr2CuO3 by XeF2 in the 100-250 degrees C temperature range in a closed Ni container. The prepared samples exhibited a lower T-c in comparison with earlier reported values. Different samples in the Sr-Cu-O-F system were prepared by a solid-state reaction at 220-400 degrees C, but no formation of the oxyfluoride was detected even with an addition of xenon difluoride. These data allow one to draw conclusions on the metastability of the oxyfluoride under the conditions used, Electron microscopy and X-ray powder diffraction studies revealed large amounts of badly crystallized SrF2; this could be a reason for the small superconducting volume fraction as well as for the inhomogeneous distribution of the anions.
- Добавил в систему: Антипов Евгений Викторович