PURPOSE: To obtain a laminated body of a highly oriented oxide superconductive substance and a metal by laminating an oxide superconductive substance, whose c-axis is oriented in an orthogonal direction to the surface of metal, whose free energy of oxide formation exhibits a positive value within a specified temperature range.
CONSTITUTION: A metal used for a back-up material is a metal whose free energy of oxide formation exhibits a positive value within a temperature range from 600°C to 880°C. Gold, silver, platinum, etc., are mentioned in the concrete, and silver is especially preferable. An inter-particle junction film of a superconductive substance, whose C-axis is oriented in an orthogonal direction to the metal surface, is obtained by heat-treating a laminated body, wherein a superconductive substance or its precursor is formed on the metal surface, at a temperature between 600°C and 800°C in air.
SUMIYAMA AKIHIKO
OGURI YASUO
