Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1988-02-16
1992-06-30
Hille, Rolf
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505702, 505703, 357 5, 357 60, H01B 1200
Patent
active
051263157
ABSTRACT:
Superconducting device include a type having a structure of a superconductor--a normal-conductor (or a semiconductor)--a superconductor, and a type having a superconducting weak-link portion between superconductors.
The superconductors constituting the superconducting device are made of an oxide of either of perovskite type and K.sub.2 NiF.sub.4 type crystalline structures, containing at least one element selected from the group consisting of Ba, Sr, Ca, Mg, and Ra; at least one element selected from the group consisting of La, Y, Ce, Sc, Sm, Eu, Er, Gd, Ho, Yb, Nd, Pr, Lu, and Tb; Cu; and O. In addition, the c-axis of the crystal of the superconductor is substantially perpendicular to the direction of current flowing through this superconductor.
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Aida Toshiyuki
Fukazawa Tokuumi
Hatano Mutsuko
Kawabe Ushio
Kominami Shinya
Hille Rolf
Hitachi , Ltd.
Loke Steven
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