Laminated film

摘要

A laminated film comprising at least two thin films of single crystal LnBa2Cu3O7-x wherein Ln is Y or one of lanthanoids except Pr and Tb having the (001) plane in the direction parallel with the film surface and at least one continuous thin film of Y2O3 which has a thickness of not larger than 100 ANGSTROM and the (001) plane in the direction parallel with the film surface and is interposed between a pair of said thin films of single crystal LnBa2Cu3O7-x, wherein the thin films of single crystal LnBa2Cu3O7-x has good superconductive properties.