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US 5,635,730 AGranted
Superconducting oxide thin film device
AssigneeAdvanced Mobile Telecommunication Technology Inc.
InventorNobuyoshi Sakakibara
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Abstract
A superconducting oxide thin film device is composed of a LaAlO.sub.3 substrate and a YBCO thin film with a BaCeO.sub.3 buffer layer disposed between the two. The adhesion between the film and the substrate is increased by the presence of the buffer layer. The buffer layer also inhibits peeling of the film from the substrate and diffusion of Ba from the film into the substrate.
Claims18
An oxide film device capable of superconductive operation, said device comprising:
- a dielectric substrate;
- a buffer layer disposed on said substrate, said buffer layer including Ba, Ce and O as constitutive elements;
- and
- an oxide film disposed on said buffer layer, said film being made of a material capable of superconductive operation, said material including Ba.
1 more element
The oxide film device of claim 4, wherein said buffer layer includes Ba, Ce and O.
An oxide film device comprising:
- a dielectric substrate;
- and
- buffer means disposed on said dielectric substrate;
- and
- an oxide film disposed on said buffer layer, said film being made of a material capable of superconductive operation, said material including Ba, Ce and O;
- wherein said buffer means is for forming an adhesive bond with said oxide film on a first side and with said dielectric substrate on a second side and for substantially preventing diffusion of said Ba atoms from said oxide film to said dielectric substrate.
3 more elements
Dependencies are inferred from the claim text.