Compound oxide high temperature superconducting material and a m

Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k

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252518, 252521, 505776, 505783, C01G 302, C01G 1500, H01B 1200, H01L 3912

Patent

active

052781399

ABSTRACT:
A superconducting material and a process for producing a superconducting material comprising a compound oxide represented by the general formula:

REFERENCES:
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Hasegawa "High T.sub.c Superconductivity of (La.sub.1-x Sr.sub.x).sub.2 CuO.sub..gamma. . . . " Jap. Jnl. Appl. Phys. vol. 26(4) Apr. 1987 pp. L337-L338.
Kishio "High-T.sub.c Superconducting Oxide Solid Solutions . . . " Chemistry Letters No. 4 Apr. 1987 pp. 635-638.
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Dong "Superconductivity and Crystal Structure of LaBa.sub.2-x Ca.sub.x Cu.sub.3 O.sub.7 " Modern Phys. Lett. B vol. 1 (718) 1987 pp. 295-302.
Sheng et al., "Superconductivity at 90K in the Tl-Ba-Cu-O System", Phys. Rev. Lett., vol. 60, No. 10, 1988, pp. 937-940.
Hazen et al, "100-K Superconducting Phases in the Tl-Ca-Ba-Cu-O System" Phys. Rev. Lett., vol. 60, No. 16, Apr. 18, 1988, pp. 1657-1660.
Sheng et al, "New 120K Tl-Ca-Ba-Cu-O Superconductor", Appl. Phys. Lett., May 16, 1988, pp. 1738-1740.
Sheng, Z. Z. et al, "Superconductivity in the Rare-Earth-Free Tl-Ba-Cu-O System Above Liquid Nitrogen Temperature"; Nature, Mar. 3, 1988, pp. 55-58.
Sheng et al, "Bulk Superconductivity at 120K in the Tl-Ca/Ba-Cu-O System", Nature, Mar. 10, 1988, pp. 138-139.
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