Patent ID: 11961631
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A connection structure of a superconducting layer comprising:
a first superconducting layer;
a second superconducting layer; and
a connection layer provided between the first superconducting layer and the second superconducting layer, and the connection layer including a first substance containing a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O) and a second substance containing at least one metal element selected from the group consisting of silver (Ag), aluminum (Al), indium (In), copper (Cu), tin (Sn), and zinc (Zn),
wherein a first area ratio at a first interface between the first superconducting layer and the connection layer is 1% or more and 50% or less, the first area ratio is an area ratio of a first region per unit area, the first region is a region where the second substance and the first superconducting layer are in contact with each other, and
a second area ratio at a second interface between the second superconducting layer and the connection layer is 1% or more and 50% or less, the second area ratio is an area ratio of a second region per unit area, the second region is a region where the second substance and the second superconducting layer are in contact with each other.