| 摘要 |
PURPOSE:To improve the Tc (critical temperature) and Jc (critical current density) by dissolving or dispersing the organic acid salt of each element in an organic solvent, sticking the solution or dispersion liquid thus obtained to the surface of a substrate, drying the stuck layer/film, then sintering it to form a superconductive thin film of the specific oxide. CONSTITUTION:The organic acid salt of the group IIa element A in the periodic table, the organic acid salt of the group IIIa element B, and the organic acid of at least one kind of element C selected from Ib-IIIb, VIIIa, IVa groups are dissolved or dispersed in an organic solvent, the solution or dispersion liquid thus obtained is stuck on a substrate, then the whole is dried and sintered to form a superconductive thin film of the oxide with the composition expressed by a formula (A1-XBX)CyOz, where A-C indicate each element in the definition, (x) indicates the atomic percentage of B against (A+B) and is set to 0.1<=x<=0.9, (y) and (z) indicate the atomic percentages of the element C and oxygen O assuming (A1-XBX)=1 and are set to 0.4<=x<=3.0, 1<=z<=5. A superconductive thin film excellent in the Tc, Jc characteristics can be thereby obtained efficiently and stably. |
