Superconducting materials including La-Sr-Nb-O, Y-Ba-Nb-O, La-Sr

Details Superconducting materials including La-Sr-Nb-O, Y-Ba-Nb-O, La-Sr Superconducting materials including La-Sr-Nb-O, Y-Ba-Nb-O, La-Sr

1991-07-10

1993-02-02

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252 629, 252521, 501123, 501135, 505778, 505779, 505780, C01F 1102, C01F 1700, C01G 3300, H01L 3912

Patent

active

051837994

ABSTRACT:
Oxide materials of (L.sub.x A.sub.1-x).sub.i MO.sub.y, (L.sub.x A.sub.1-x).sub.i M.sub.1-z Cu.sub.z O.sub.y and (L.sub.x A.sub.1-x).sub.i MO.sub.j-.delta. G.sub.k, wherein L is Sc, Y, lanthanides, etc.; A is Ba, Sr. Ca, etc.; M is V, Nb, Ta, T, Zr or Hf; 0<x<1; 0<z<1; i=1, 3/2 or 2; 0<y.ltoreq.4; Gis F, Cl or N; .delta. is oxygen defect, and having a perovskite-like crystal structure, show superconductivity at a temperature higher than the liquid nitrogen temperature.

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