| http://www.w3.org/ns/prov#value | - A superconducting device, comprising:a first unit including a thin film of a superconducting material with an upper and a lower surface which forms a channel layer; an upper surface of a lower insulating gate layer epitaxially connected to the lower surface of the superconducting film and a lower surface of an upper insulating gate layer epitaxially connected to the upper surface of the supercondu
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