Gradiometric parallel superconducting quantum interface device
AssigneeInternational Business Machines Corporation
InventorsMartin O. Sandberg, Vivekananda P. Adiga, Hanhee Paik
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Abstract
Techniques regarding parallel gradiometric SQUIDs and the manufacturing thereof are provided. For example, one or more embodiments described herein can comprise an apparatus, which can comprise a first pattern of superconducting material located on a substrate. Also, the apparatus can comprise a second pattern of superconducting material that can extend across the first pattern of superconducting material at a position. Further, the apparatus can comprise a Josephson junction located at the position, which can comprise an insulating barrier that can connect the first pattern of superconductor material and the second pattern of superconductor material.
Claims19
An apparatus, comprising:
- a first superconducting material located on a substrate and formed in a first pattern having a hollow interior region;
- a second superconducting material formed in a second pattern distinct from the first pattern, the first pattern and the second pattern overlapping at a first defined position of the first pattern and being non-overlapping at a second defined position of the first pattern;
- and
- a Josephson junction located at the first defined position at which the first pattern and the second pattern overlap, wherein the Josephson Junction comprises an insulating barrier that connects the first superconducting material and the second superconducting material, wherein the first pattern is a ring shape, wherein the second pattern extends from a first side of the ring shape to a second side of the ring shape, and wherein the Josephson junction is located at the defined position where the second pattern overlaps the first pattern.
A method, comprising:
- depositing a first superconducting material onto a substrate, wherein the first superconducting material is formed in a first pattern having a hollow interior region;
- forming an insulating barrier on a surface of the first superconducting material that is opposite to the substrate;
- and
- depositing a second superconducting material formed in a second pattern distinct from the first pattern over the insulating barrier to form a Josephson junction, wherein the Josephson Junction is formed at a defined position at which the first pattern, the second pattern and the insulating barrier overlap, wherein the first pattern is formed in a ring shape, wherein the second pattern extends from a first side of the ring shape to a second side of the ring shape, and wherein the Josephson junction is located at the defined position where the second pattern overlaps the first pattern.
A method, comprising:
- forming a first pattern of a first superconducting material on a substrate;
- forming an insulating barrier adjacent to the first superconducting material such that the first superconducting material separates the insulating barrier from the substrate;
- and
- forming a second pattern of a second superconducting material across the insulating barrier to form a Josephson junction, wherein a first shape of the first pattern is distinct from a second shape of the second pattern, wherein the first pattern is formed in a ring shape, wherein the second pattern extends from a first side of the ring shape to a second side of the ring shape, and wherein the Josephson junction is located at the defined position where the second pattern overlaps the first pattern.
Dependencies are inferred from the claim text.