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Growth of high-quality 2212 BSCCO crystals in Pt crucibles and characterisation

✍ Scribed by A.J.S. Chowdhury; B.M.R. Wanklyn; F.R. Wondre; J.W. Hodby; A.V. Volkozub; P.A.J. de Groot

Book ID: 103948882
Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 977 KB
Volume: 225
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)90740-4

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✦ Synopsis

We report the growth of pure, high-quality Bi2Sr2CaCu20 x (BSCCO 2212) crystals, grown by a novel flux method in Pt crucibles. The growth process involves repeated remelting and recrystallisation of the same melt. The crystals appear to be chemically pure, contain no Pt contamination and demonstrate a very high as-grown Tc (onset), above 92 K, and the majority in the range 93-95 K with transition widths ( 10-90% level) between 4 and 8 K. The lattice parameters of a typical crystal are a--5.414 (2) A, b = 5.413 ( 2 ) A, c--30.893 ( 12 ) A. We discuss the growth process and the qualities of these crystals.

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