High temperature superconductors having planar magnetic flux...

Details High temperature superconductors having planar magnetic flux... High temperature superconductors having planar magnetic flux...

2011-03-08

2011-03-08

Silverman, Stanley (Department: 1736)

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

Heating, annealing, or sintering

C505S230000, C505S231000, C505S237000, C505S238000, C505S430000, C505S431000, C505S482000, C505S742000, C428S701000, C428S702000, C428S930000, C174S125100, C029S599000

Reexamination Certificate

active

07902120

ABSTRACT:
Superconductor wires or layers having improved properties and methods for making the same are described. The superconducting layer includes a rare earth element-alkaline earth element-transition metal oxide having an average stacking fault density that is greater than about 0.01 nm−1, wherein two or more rare earth cations form the rare earth element. To form the superconductor layer of the present invention, a layer having a rare earth element-alkaline earth element-transition metal oxide substantially in a first crystal structure can be provided to a substrate where two or more rare earth cations form the rare earth element. The layer can then be heated at a temperature that is greater than 550° C. under oxidizing conditions to form a high-temperature superconducting layer substantially in a second crystal structure.

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