| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxide superconductor, which includes c-axis oriented particles at a high rate when a thick film is formed on a substrate and shows high characteristics, capable of adjusting a lattice constant of a mixed superconductor film obtained by mixing raw material solution of a plurality of Ln system superconductors. SOLUTION: The oxide superconductor, in which main components are represented by a general expression LnBa<SB>2</SB>Cu<SB>3</SB>O<SB>7-x</SB>(here, Ln is two elements or more selected from a group of Gd, Tb, Dy, Ho, Er, Tm, and Y, and a content of each element is 10 to 90 mol%), includes fluorine with a molar ratio of 10<SP>-2</SP>to 10<SP>-6</SP>of copper. COPYRIGHT: (C)2008,JPO&INPIT
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