PRODUCTION METHOD OF BASE MATERIAL FOR OXIDE SUPERCONDUCTOR, BASE MATERIAL FOR OXIDE SUPERCONDUCTOR, AND OXIDE SUPERCONDUCTOR

摘要

PROBLEM TO BE SOLVED: To provide a production method for producing, at a low cost, a base material for an oxide superconductor, which is equipped with a CeOcap layer having good crystal orientation, and to provide a base material for an oxide superconductor, which is obtained by using the method, and also to provide an oxide superconductor.SOLUTION: The production method of the base material for an oxide superconductor is characterized by irradiating a target with any one of a third higher harmonic (with a wavelength of 355 nm), a fourth higher harmonic (with a wavelength of 266 nm) and a fifth higher harmonic (with a wavelength of 213 nm) of a YAG laser light so that the energy density on the target is 6 J/cmor more to beat out or evaporate particles constituting the target and to deposit the particles on the surface of an intermediate layer formed in an upper part of a base material, and thereby forming a CeOcap layer on the intermediate layer.