Conductive articles and processes for their preparation

Details Conductive articles and processes for their preparation Conductive articles and processes for their preparation

1988-06-20

1990-09-11

Ryan, Patrick

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505700, 505701, 505702, 505704, 505725, 505728, 29599, 428209, 428457, 428688, 428901, 428930, 427 62, 427 96, 427102, 427103, 156625, 156629, 156630, 156631, B32B 300

Patent

active

049563351

ABSTRACT:
A patterned crystalline superconducting layer is formed by first providing a copper oxide lift-off layer under an amorphous metal oxide superconducing precursor layer and then photolithographically forming a pattern in the layers. The patterned layers are then heat treated to form the final crystalline superconducting layer.

REFERENCES:
J. G. Bednorz et al., "Possible High T.sub.c Superconductivity in the Ba-La-Cu-O System", Z. Phys. B.-Condensed Matter, vol. 64, pp. 189-193, 1986.
C. W. Chu et al., "Evidence for Superconductivity above 40 K in the La-Ba-Cu-O Compound System", Physical Review Letters, vol. 53, No. 4, pp. 405-407, Jan. 1987.
C. W. Chuet et al., "Superconductivity at 52.5 K in the Lanthanum-Barium-Copper-Oxide System", Science Reports, vol. 235, pp. 567-569, Jan. 1987.
R. J. Cava et al., "Bulk Superconductivity at 36 K in La.sub.1.8 Sr.sub.0.2 CuO.sub.4 ", Physcial Review Letters, vol. 58, No. 4, pp. 408-410, Jan. 1987.
J. M. Tarascon et al., "Superconductivity at 40 K in the Oxygen-Defect Perovskites La.sub.2-x Sr.sub.x CuO.sub.4-y ", Science Reports, vol. 235, pp. 1373-1376, Mar. 13, 1987.
M. K. Wu et al., "Superconductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-O Compound System at Ambient Pressure", Physcial Review Letters, vol. 58, No. 9, pp. 908-910, Mar. 2, 1987.
Superconduction, Stripline Resonator Performance, McAvoy et al., IEEE Tran. Magn., May 25, 1989.
Applied Physics Letters, Perlow et al., 33(12) Dec. 1978, Howard-Refractory Lift Off Process.

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