Lattice matching device and method for fabricating the same

Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Producing josephson junction – per se

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505702, 505704, 505729, 117 89, 117 90, 117 95, 117105, 117106, C30B 2304

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058212000

ABSTRACT:
A lattice matching device includes a substrate having thereon monocrystal regions having different lattice mismatches with respect to a LnBa.sub.2 Cu.sub.3 O.sub.x superconductor. A superconducting thin film is formed on the substrate, which film consists essentially of a superconductor of LnBa.sub.2 Cu.sub.3 O.sub.x wherein Ln represents yttrium or a lanthanide, and 6<x<7. The first and second superconducting thin film portions have different axes of orientation perpendicular to a main surface of the substrate, and arranged in contact with each other or at a distance which allows transmission of electron pairs from one to another.

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