The present invention provides a process and structure of microfabricated air bridges for planar microwave resonator circuits. In an embodiment, the invention includes depositing a superconducting film on a surface of a base material, where the superconducting film is formed with a compressive stress, where the compressive stress is higher than a critical buckling stress of a defined structure, etching an exposed area of the superconducting film, thereby creating the at least one bridge, etching the base material, thereby forming a gap between the at least one bridge and the base material, depositing the at least one metal line on at least part of the superconducting film and at least part of the base material, where the at least one metal line runs under the bridge.

Techniques regarding shielding one or more superconducting devices are provided. For example, one or more embodiments described herein can comprise an apparatus, which can comprise a multi-layer enclosure that shields a superconducting device from a magnetic field and radiation. Further, the multi-layer enclosure can comprise a superconducting material layer that can have a thickness that inhibits a penetration of the multi-layer enclosure by the magnetic field. The multi-layer enclosure can also comprise a metal layer adjacent to the superconducting material layer. The metal layer can have a high thermal conductivity that achieves thermalization with the superconducting material layer. Moreover, the multi-layer enclosure can comprise a radiation shield layer adjacent to the superconducting material layer.

In various embodiments, superconducting wires incorporate diffusion barriers composed of Nb alloys or NbTa alloys that resist internal diffusion and provide superior mechanical strength to the wires.

In various embodiments, superconducting wires incorporate diffusion barriers composed of Nb alloys or NbTa alloys that resist internal diffusion and provide superior mechanical strength to the wires.

The present disclosure relates to a superconductor including magnesium diboride and a production method therefor. A superconductor having a high critical current density at a certain temperature and under a certain magnetic field may be obtained by doping magnesium diboride with liquid chloroform during the production of the superconductor.

A method for fabricating a bridge structure in a quantum mechanical device includes providing a substructure including a substrate having deposited thereon a layer of a first superconducting material divided into a first portion, a second portion and a third portion that are electrically insulated from each other; depositing a sacrificial layer on the substructure; electrically connecting the first portion and the second portion with a strip of a second superconducting material, the second superconducting material being different from the first superconducting material; and removing a portion of the sacrificial layer so as to form a bridge structure over the third portion between the first portion and the second portion, the bridge structure electrically connecting the first portion to the second portion while not electrically connecting the third portion to the first portion and not electrically connecting the third portion to the second portion.

A device comprises a tube with a tube HTS solenoid, wherein a projectile in a sabot comprising a sabot HTS solenoid. A method comprises disposing a seed HTS crystal on a growing crystal in contact with an a-b plane of the seed HTS crystal to grow the growing crystal, wherein the a-b plane is perpendicular to a c-axis. A method comprises disposing a seed HTS crystal on a growing crystal in contact with a b-c plane of the seed HTS crystal to grow the growing crystal, wherein the b-c plane is perpendicular to an a-axis. A device comprises a reinforced HTS material in a graphene casing, wherein the HTS in the graphene casing includes a cooling channel and a return channel.

A composition comprises a plurality of continuous ordered fibers embedded in a high temperature superconducting material, wherein the plurality of continuous ordered fibers comprise a core and a reinforcing material. A composition comprises one or more large diameter continuous fibers embedded in a high temperature superconducting material; and one or more small diameter continuous fibers embedded in a high temperature superconducting material. A composition comprising one or more continuous fibers embedded in a high temperature superconducting material, wherein a fiber of the one or more continuous fibers comprise a core and reinforcing material, and wherein one or more magnetic particles are embedded in the core of the fiber.

A device comprises a solenoid of reinforced HTS material, wherein the solenoid of reinforced HTS material comprises a plurality continuous ordered fibers embedded in a high temperature superconducting material. A device comprises one or more coils, wherein the one or more coils comprise HTS solenoids; an armature coupled to a stem in a control valve, wherein the armature comprises a HTS solenoid; and coolant access paths, wherein the coolant access paths enable cooling the one or more coils and the armature. A device comprises a photovoltaic cell; and a parallel array of HTS solenoids, wherein the parallel array of HTS solenoids is coupled to the photovoltaic cell.

A method comprises growing a longitudinal a-b plane high temperature superconducting crystal with a long fiber reinforced seed crystal; and cutting off the long fiber reinforced seed crystal from the longitudinal a-b plane high temperature superconducting crystal. A method comprises adding high temperature superconducting constituent powders; adding intermediate solid state powders to the constituent powders; disposing fiber reinforcement within the intermediate solid state powders and the constituent powders; compressing the intermediate solid state powders and the constituent powders with the fiber reinforcement to form a high temperature superconducting shape; and heating the high temperature superconducting shape to crystalize. A composition comprises a plurality HTS segments, wherein a HTS segment comprises one or more continuous fibers embedded in a high temperature superconducting material; and a wire or a tape, which is mechanically and electrically coupled between a first HTS segment and a second HTS segment.