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.
Claims25
An apparatus, comprising:
- a first pattern of superconducting material located on a substrate;
- a second pattern of superconducting material that extends across the first pattern of superconducting material at a position;
- and
- a Josephson junction located at the position and comprising an insulating barrier that connects the first pattern of superconducting material and the second pattern of superconducting material;
- a third pattern of superconducting material that extends across the first pattern of superconducting material at a second position;
- and
- a second Josephson junction located at the second position, wherein the second Josephson junction comprises a first portion of the first pattern of superconducting material, a second portion of third pattern of superconducting material, and a second insulating barrier.
An apparatus, comprising:
- a ring of superconductor material;
- a path of superconductor material positioned across the ring of superconductor material;
- and
- a Josephson junction comprising an insulating barrier that connects the ring of superconductor material and the path of superconductor material.
An apparatus, comprising:
- a first superconducting pathway located on a substrate;
- a second superconducting pathway that crosses over the first superconducting pathway at a position;
- a Josephson junction located at the position and comprising a first superconductor material of the first superconducting pathway, a second superconductor material of the second superconducting pathway, and an insulating barrier;
- a third superconducting pathway that crosses over the first superconducting pathway at a second position;
- and
- a second Josephson junction located at the second position, wherein the second Josephson junction comprises a first superconductor material of the first superconducting pathway, a third superconductor material of the third superconducting pathway, and a second insulating barrier.
A method, comprising:
- depositing a first superconducting material onto a substrate;
- forming an insulating barrier on a surface of the first superconducting material that is opposite to the substrate;
- and
- depositing a second superconducting material over the insulating barrier to form a Josephson junction at a position;
- and
- depositing a third superconducting material over first superconducting material to form a second Josephson junction at a second position, wherein the second Josephson junction comprises a first portion of the first superconducting material, a second portion of third superconducting material, and a second insulating barrier.
A method, comprising:
- forming a first pattern of superconducting material on a substrate;
- forming an insulating barrier adjacent to the first pattern of superconducting material such that the first pattern of superconducting material separates the insulating barrier from the substrate;
- and
- forming a second pattern of superconducting material across the insulating barrier to form a Josephson junction at a position;
- forming a third pattern of superconducting material across the first pattern of superconducting material to form a second Josephson junction at a second position, wherein the second Josephson junction comprises a first portion of the first pattern of superconducting material, a second portion of third pattern of superconducting material, and a second insulating barrier.
Dependencies are inferred from the claim text.