Assembly of carrier and superconductive film
AssigneeForschungszentrum Julich GmbH
InventorRoger W{overscore (o)}rdenweber
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Abstract
A flux-pinning system comprised of a high temperataure superconductor film on a carrier wherein the film is provided with a multiplicity of holes of a radius of 50 to 2000 nm serves as the basis for an electronic component which can be utilized in high frequency and radial frequency circuits and in conjuction with SQUIDs. The holes can be arranged with variable density over the film or in the form of a uniform hexagonal or square grid and the high temperature superconductor is preferably a YBa2Cu3P7 composition.
Claims6
An electronic component comprising an assembly to which an external magnetic field B is applied and having a carrier and a high temperature superconductor film deposited on the carrier in a thickness t and provided with a multiplicity of holes penetrating through the film with a radius in the range of 50 to 2000 nm, a mean distance d between neighboring holes, a hole radius r and the thickness t of the film so selected as to satisfy the inequality Bc1·(t/(d−2r))0.5>B, wherein Bc1 represents the lower critical field of the superconductor and B is the external magnetic field, and wherein a density of the holes varies locally over the film.
Dependencies are inferred from the claim text.