SUBSTRATE FOR SUPERCONDUCTING FILM, SUPERCONDUCTING WIRE, AND SUPERCONDUCTING WIRE FABRICATION METHOD

摘要

Disclosed is a substrate for a superconducting film which is a tape-shaped substrate for a superconducting film, comprising: a film deposition face for film deposition of a layered body including a superconducting layer; a reverse face which is a face on the opposite side from the film deposition face; a pair of end faces which are contiguous with the film deposition face and the reverse face; and a pair of lateral faces which are contiguous with the film deposition face, the reverse face, and the pair of end faces. The pair of lateral faces respectively includes expanding faces which expand outwardly from an edge part of the film deposition face toward the reverse face in a planar direction of the film deposition face. Also disclosed are a superconducting wire and a superconducting wire fabrication method.