High temperature superconductor system comprising Tl.sub.2 Ba.su

Details High temperature superconductor system comprising Tl.sub.2 Ba.su High temperature superconductor system comprising Tl.sub.2 Ba.su

1989-01-13

1993-10-26

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 505783, C01F 1102, C01G 302, C01G 1500, H01L 3912

Patent

active

052566358

ABSTRACT:
A high temperature superconducting system has the general composition Tl-R-X-Y, wherein: R is a Group 2A element; X is a Group 1B element; and Y is a Group 6A element. Preferably, the composition has the following formula Tl-Ba-Cu-O. The high temperature superconductor of the present invention has a transition temperature of about 90 K with the probability of one phase superconducting at a temperature perhaps as high as 270 K. Processes for making the high temperature superconductor are also provided.

REFERENCES:
patent: 4929594 (1990-05-01), Gopalakvishman
Torandi "Structures of the Superconducting Oxides Tl.sub.2 Ba.sub.2 CuO.sub.6 . . . " Physical Rev. B vol. 38 (1) Jul. 1, 1988 pp. 225-231.
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