To provide: a base material for an oxide superconducting conductor, capable of providing an oxide superconducting conductor excellent in superconducting characteristics; a method for producing the base material for the oxide superconducting conductor; and an oxide superconducting conductor excellent in superconducting characteristics.
A base material 10 for an oxide superconducting conductor of the present invention includes, on a metal base material body 1, a first diffusion prevention layer 11 having an amorphous structure as the primary structure, a second diffusion prevention layer 12 having density higher than that of the first diffusion prevention layer and having an amorphous structure and a microcrystal which coexist therein, and an intermediate layer 4 formed by ion beam assisted vacuum deposition. An oxide superconducting layer is formed on an upper part of the intermediate layer.
Sumio Tanai
Mitsunaga Igarashi
Toshio Komuro
Yuichiro Shimizu
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