Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1990-08-13
1992-03-24
Lieberman, Paul
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
252518, 252521, 423263, 423593, 423604, 423635, 501152, 505725, 505780, 505809, H01L 3912, H01B 108
Patent
active
050988859
ABSTRACT:
The disclosed substance has a composition of Y.sub.x Ba.sub.y CuO.sub.z, wherein x=0.2-0.5 y=0.2-0.5 and z.perspectiveto.1+y+(3/2)x, with a face-centered tetragonal crystalline structure of perovskite type. When being cooled at 85-135 K, the structure of the substance starts to transform and its electric resistance disappears at a temperature higher than 47 K so that the substance becomes superconductive.
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Lieberman Paul
Skaling Linda D.
The University of Tokyo
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