SUPERCONDUCTING WIRE MATERIAL AND METHOD FOR MANUFACTURING SUPERCONDUCTING WIRE MATERIAL

摘要

In the present invention, impurities in an interface with an oxide superconductor layer or an oxide superconductor layer on an intermediate layer side are reduced. The constitution of a superconducting wire material comprises: a metal base material (10); intermediate layers (20) that are formed on the metal base material (10) and contain a rare earth element that reacts with Ba; a reaction control layer (28) formed on the intermediate layers (20) mainly containing LaMnO3 + d1, d1 being the amount of nonstoichiometric oxygen; and an oxide superconductor layer (30) formed on the reaction control layer (28) mainly constituted of an oxide superconductor that contains Ba.