High TC superconducting film

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


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505701, 505731, 505732, 428930, 428702, 428688, 427 62, H01L 3900




This invention relates to new superconducting material having a composition represented by the general formula:

patent: 4316785 (1982-02-01), Suzuki et al.
patent: 4880773 (1989-11-01), Itozaki et al.
patent: 4952555 (1990-08-01), Sibata et al.
Hasegawa et al, "High T.sub.c Superconductivity of (La.sub.1-x Sr.sub.x)CuO.sub.4 -Effect of Substitution of Foreign Ions for Cu and La on Superconductivity", Jpn. J. Appl. Phys 26 (Mar. 1987) pp. 337-338.
Cava et al, "Bulk Superconductivity at 36 K in La.sub.1.8 Sr.sub.0.2 CuO.sub.4 ", Physical Review Letters, vol. 58, No. 4 (Jan. 1987) pp. 408-410.
Hammond, "Synthesis and physical properties of superconducting compound films formed by the electronbeam codeposition of the elements", J. Vac. Sci. Technol., 15(2) (Mar./Apr. 1978) pp. 382-385.
Bunshah et al, "Deposition Technologies for Films and Coatings", Noyes Publications, Park Ridge, NJ, USA, 1982, pp. 83-237.
Xin et al, "A Study of Superconducting Oxide Y-Ba-Cu-Sn-O", International Journal of Modern Physics B, vol. 1, No. 2(Jun. 1987) pp. 277-280.
Hor et al, "Superconductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-O Compound System at Ambient Pressure", Physical Review Letters, vol. 58, No. 9 (Mar. 1987) pp. 908-910.
Bednorz et al, "Possible High Tc Superconductivity in the Ba-La-Cu-O System", Z. Phys. B-Condensed Matter, 64 (1986) pp. 189-193.


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