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Crystallization of Amorphous YBCO and BSCCO Thin Films by Zone-Melt Technique
Katsuro OKUYAMA Shigetoshi OHSHIMA Hiroaki UENISHI Shiro KAMBE
IEICE TRANSACTIONS on Electronics
Publication Date: 1993/08/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on High-Temperature Superconducting Electronics)
YBCO films, BSCCO films, crystallization, zonemelt technique,
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Amorphous films of YBCO and BSCCO (2212) sputtered on MgO substrate were crystallized using zonemelt technique. For YBCO films, thin Ag intermediate layer was found to be effective in enhancing crystal growth and preferred orientation. Zone-melted BSCCO films included both (2201) phase and Cu(Sr, Ca)O2 in a form of dendritic crystallites. Tc's obtained for YBCO and BSCCO films were 70 and 75 K, respectively.