Patent ID: 7939126
Filing Date: 2011-05-10
Classification: C30B,H01L,Y10S

Abstract:
1. A method of making a superconductor film, comprising: disposing a precursor solution onto a surface of a layer to form a precursor film, the precursor solution including: a carboxylate salt of a rare earth metal, a fluorinated carboxylate salt of an alkaline earth metal, and a non-halogenated carboxylate salt of copper; treating the precursor film to form an intermediate of a superconductor film, the intermediate comprising a fluoride of the alkaline earth metal, the intermediate of the superconductor film having a thickness of at least about 1 micrometers and the superconductor film having a critical current density of at least about 1×10 treating the intermediate to produce the superconductor film; the superconductor film comprising the rare earth metal, the alkaline earth metal and copper; wherein the carboxylate salt of the rare earth metal is a salt selected from the group consisting of halogenated yttrium acetates and non-halogenated yttrium acetates and the fluorinated carboxylate salt of the alkaline earth metal is barium trifluoroacetate.