Thick superconductor films with improved performance

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(57) Abstract : A method for producing a thick film includes disposing a precursor solution onto a substrate to form a precursor film. The precursor solution contains precursor components to a rare earth/alkaline earth metal/transition metal oxide including a salt of a rare earth element, a salt of an alkaline earth metal, and a salt of a transition metal in one or more solvents, wherein at least one of the salts is a fluoride-containing salt, and wherein the ratio of the transition metal to the alkaline earth metal is greater than 1.5. The precursor solution is treated to torm a rare earth alkaline earth metal transition metal oxide superconductor film having a thickness greater than 0.8 tm. solution. RO, SE, SI, SK, TR), OAPI (BF, B J, CE CG, CI, CM, GA, For two-letter codes and other abbreviations, refer GN, GQ, GW, ML, MR, NE, SN, TD, TG). ance Notes on Codes and Abbreviations" appearing ning of each regular issue of the PCT Gazette. Published : without international search report and to be republished upon receipt of that report