Abstract: A method of manufacturing a superconducting wire is provided. The method is provided with the steps of filling a raw material powder in a metal pipe, the raw material powder being composed of an oxide superconductor or a precursor to become an oxide superconductor through heat treatment; heating the metal pipe filled with the above-described raw material powder to 400° C. or more and 800° C. or less; depressurizing the inside of the above-described heated metal pipe to 100 Pa or less; sealing an opening at an end portion of the metal pipe under the above-described depressurized condition; and subjecting the sealed metal pipe containing the above-described raw material powder to wire drawing, wherein the packing density of the above-described raw material powder is controlled at 10 percent or more and 40 percent or less and, thereby, the degasification of the inside of the metal pipe is adequately performed, so that the critical current density can be increased.

Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.

Abstract: A method for electrochemical synthesis of a superconducting boron compound MgB2 which comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heating at a temperature of 400° C. or below under an inert gas atmosphere, and further heating the mixture electrically at a temperature of 400° C. or above so that it is melted and undergoes chemical reaction.

Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.

Abstract: A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element having a thickness on the order of 1 to 25 microns, surrounding the billet prior to the last reduction step with a porous confining layer of an acid resistant metal, immersing the confined billet in an acid or a high temperature liquid metal to remove the ductile metal from between the niobium elements while the niobium elements remain confined by said porous layer, exposing the confined mass of niobium elements to a material capable of reacting with Nb to form a superconductor.

Abstract: A method for winding on embedded b-zero coil maintains the integrity of superconducting main coil and the b-zero wire during coil winding and during normal operation of a superconducting MRI magnet. The b-zero coil is co-wound with an aluminum overwrap while the aluminum overwrap is being wound onto the superconducting MRI coil. The two-wire geometries are selected such that the height or thickness of the aluminum overwrap is greater than or equal to the height or thickness of the b-zero coil wire. The b-zero coil wire sits in a cavity that is created by adjacent turns.

Abstract: An electronic device including a crystalline substrate, an electrode formed on and epitaxial to the substrate, the electrode including a first superconductive oxide, an insulator formed on and epitaxial to the electrode, a barrier that includes an ion-treated surface of the first superconductive oxide, and a counter-electrode formed on and epitaxial to the electrode and the barrier, the counter-electrode including a second superconductive oxide, whereby a Josephson junction is formed between the electrode and the counter-electrode. A superconductor device that includes an oxide superconductor having a surface exposed to ambient environment, and a passivation layer covering at least a portion of the surface of the oxide superconductor that is exposed to the ambient environment. Methods of forming the above devices are also included.

Abstract: The invention relates to a process for applying a resistive layer on an oxide superconducting element for electrically decoupling superconducting filaments contained in the element, an oxide superconducting element having a resistive layer and use thereof, in particular in ac applications, the resistive layer being formed by chemically converting the surface of a conducting metal coating sheating the superconducting core of said filaments into a salt of a metal constituting said conducting coating.

Abstract: Disclosed is an oxide high temperature superconductor having a crystalline substrate of low dielectric constant formed thereon with a thin film of the oxide high temperature superconductor that is high in crystallographic integrity and excels in crystallographic orientation as well as a method of making such an oxide high temperature superconductor.

Abstract: An ion source impinging on the surface of the substrate to be coated is used to enhance a MOCVD, PVD or other process for the preparation of superconducting materials.

Abstract: A system and method of controlling movement of magnetic material with at least first and second high temperature superconductors at spaced locations. A plurality of solenoids are associated with the superconductors to induce a persistent currents in preselected high temperature superconductors establishing a plurality of magnetic fields in response to pulsed currents introduced to one or more of the solenoids. Control mechanism in communication with said solenoids and/or said high temperature superconductors are used to demagnetize selected ones of the high temperature superconductors to reduce the magnetic fields substantially to zero. Magnetic material is moved between magnetic fields by establishing the presence thereof and thereafter reducing magnetic fields substantially to zero and establishing magnetic fields in other superconductors arranged in a predetermined configuration.

Abstract: A superconducting thin film is disclosed having columnar pinning centers utilizing nano dots, and comprising nano dots (3) which are formed insularly on a substrate (2) and three-dimensionally in shape and composed of a material other than a superconducting material and also other than a material of which the substrate is formed, columnar defects (4) composed of the superconducting material and grown on the nano dots (3), respectively, a lattice defect (6) formed on a said columnar defect (4), and a thin film of the superconducting material (5) formed in those areas on the substrate which are other than those where said columnar defects are formed.

Abstract: A persistent current switch which operates at operating temperature higher than that of a metallic superconducting wire, and which is smaller, lighter and higher in electric resistance in a normal conducting state than a superconducting Ag sheathed wire. An LPE film formed in a meandering shape or a spiral shape for an elongated conducting route can fulfill the above requirements. The shape can be controlled by LPE growth from a pre-processed seed film or by processing after growth.

Abstract: A HTS RF coil is disclosed having at least a factor of three improvement in the SNR over a comparable copper coil and at least a factor of six improvement in Q over a comparable copper coil. A commercially available HTS tape is formed into a loop. High-Q capacitors are soldered across the loop ends. The silver sheath covering the tape is removed through chemical etching. The coil is placed in a holder for mechanical support and protection and covered with a cover having through holes enabling the coolant to directly contact the HTS coil.

Abstract: An oxide superconductor of the present invention characterized in that it comprises: a substrate 1 made of metals having a high melting temperature; at least one oxide intermediate layer 2 and 3 which is formed on at least one surface of the substrate 1; and a thick film oxide superconductor layer 5 which is formed on the oxide intermediate layer 2 and 3 by the liquid phase epitaxial method in which the substrate 1 provided with the oxide intermediate layer 2 and 3 is put into a solution 7 containing the elements comprising an oxide superconductor layer, and is then pulled out from the solution 7.

Abstract: A method for increasing the critical temperature, Tc, of a high critical temperature superconducting (HTS) film (104) grown on a substrate (102) and a superconducting structure (100) made using the method. The HTS film has an a-b plane parallel to the surface of the substrate and a c-direction normal to the surface of the substrate. Generally, the method includes providing the substrate, growing the HTS film on the substrate and, after the HTS film has been grown, inducing into the HTS film a residual compressive strain the a-b plane and a residual tensile strain into the c-direction.

Abstract: The present invention provides crystal oriented ceramics, and a production method of the same, having a basic composition of isotropic perovskite-based potassium sodium niobate, demonstrating superior piezoelectric characteristics, and having a specific crystal plane oriented to a high degree of orientation. The crystal oriented ceramics as claimed in the present invention is composed of a polycrystalline substance of an isotropic perovskite compound represented by the general formula: {Lix(K1−yNay)1−x}{Nb1−z−wTazSbw}O3 (wherein, 0≦x≦0.2, 0≦y≦1, 0≦z≦0.4, 0≦w≦0.2, x+z+w>0), and a specific crystal plane of each crystal grain that composes said polycrystalline substance is oriented.

Abstract: A method for producing a superconductor having a high copper to superconductor composition (Cu/SC) ratio by cross-sectional area. An assembly is prepared formed of one or more fine filaments of a superconductor composition or of a precursor component for a superconductor alloy composition, which filaments are embedded in a copper-based matrix. The assembly is electroplated with copper to increase the Cu/filament ratio in the resulting product, and thereby increase the said Cu/SC ratio to improve the stability of the final superconductor.

Abstract: An MgB2 compound sheath superconducting wire includes a high stable metal having a specific electric resistance 7 &mgr;&OHgr;cm or below at a room temperature and a high strength metal having a Vickers hardness 50 or above at a room temperature, both of which are assembled therewith to realize a high strength and a lengthy superconductor.

Abstract: The invention relates to an MgB2 based powder for the production of superconductors, having high reactivity which can be sintered at visibly lower temperatures and which can be compacted in large high density samples having a high superconductive transition temperature and a high critical current. The aim of the invention is achieved by virtue of the fact that the powder is a mechanical alloy powder, whose particles have an average size of d<250 &mgr;m and a substructure consisting of nanocrystalline grains whereby the dimensions thereof are <100 &mgr;m. The inventive powder can also contain additional chemical elements in the crystal grating of the MgB2-power particles.

Abstract: An oxide superconductor includes a textured superconducting material including an array of defects, where the defects are a compound of two elements foreign to the superconductor, plus other elements native to the superconductor. The two foreign elements include one from group A and one from group B (or alternately the two foreign elements include the element uranium and one element from group C), where group A includes Cr, Mo, W, or Nd, group B includes Pt, Zr, Pd, Ni, Ti, Hf, Ce and Th, and group C includes Zr, Pd, Ni, Ti, Hf, Ce and Th. The array of defects is dispersed throughout the superconducting material.

Abstract: There is provided is a method of manufacturing a superconductor layer, including preparing a coating solution by dissolving trifluoroacetates of at least one metal selected from the group consisting of yttrium and lanthanoids, barium, and copper in a solvent, coating a main surface of a substrate with the coating solution to form a coating film, subjecting the coating film to a calcining process in an atmosphere containing oxygen, and subjecting the coating film after the calcining process to a firing process in an atmosphere containing water vapor at a temperature higher than that at the calcining process. The calcining process is carried out such that the coating film after the calcining process and before the firing process have an average CuO particle diameter equal to or less than 25 nm.

Abstract: A composite superconducting tape including a plurality of stacked and diffusion- bonded superconducting tapes. Each of the superconducting tapes includes a filament of superconducting material in a silver-silver alloy cladding. Each of the superconducting tapes are an elongate component extending longitudinally.

Abstract: The invention provides a superconductor comprising particles made of a superconductive material, and a conductive material. The conductive material is selected to be driven to a superconductive state when in proximity to the superconductive material, and preferably at least includes gallium. An unbroken length of the conductive material is located sufficiently close to a plurality of the particles to be driven to a superconductive state by the superconductive material.

Abstract: The present invention relates to a superconducting colloid prepared by an exfoliating multi-layered superconductor, represented by the formula Bi2Sr2Cam−1CumO2m+4+&dgr; (wherein, m is 1, 2 or 3 and &dgr; is a positive number greater than 0 and less than 1) in which a mercuric halide-organic complex is intercalated, a process thereof, a superconducting thin layer prepared using the above superconducting colloid, and a process thereof.

Abstract: A lure for attracting sea life, the lure comprising: a housing; an energy-harvesting transducer contained within the housing and operatively connectable to an external deformation source for deforming the energy-harvesting transducer, the energy-harvesting transducer being configured to generate an electrical signal in response to being deformed; transducer-driving circuitry contained within the housing and electrically connected to the energy-harvesting device, the transducer-driving circuitry configured to receive the electrical signal and to output a driving signal suitable for powering at least one transmitting transducer; and at least one transmitting transducer electrically connected to the transducer driving circuitry, the transmitting transducer deforming in response to the driving signal to generate a sonar signal.

Abstract: A ceramic powder of grains having a shape-anisotropy is mixed with a calcined or uncalcined (or both) powder of a ceramic raw material. A ceramic slurry containing the produced mixed powder, a solvent and a binder is prepared and the ceramic slurry is formed into a sheet. A laminate comprising a plurality of the sheets laminated to each other is uniaxially pressed to form an oriented product in such a manner that the length of the laminate in the direction parallel to the pressing axis becomes larger than that before the pressing, and the area of a plane perpendicular to the pressing axis of the laminate becomes larger than that before the pressing. The oriented formed product is fired and sintered.

Abstract: The invention is intended to establish means for manufacturing MB2 single crystals and to provide a useful superconductive material (wire rod and so forth) taking advantage of anisotropic superconductive properties thereof. A mixed raw material of Mg and B or a precursor containing MgB2 crystallites, obtained by causing reaction of the mixed raw material of Mg and B, kept in contact with hexagonal boron nitride (hBN), is held at a high temperature in the range of 1300 to 1700° C. and under a high pressure in the range of 3 to 6 GPa to cause reaction for forming an intermediate product, thereby growing the MB2 single crystals having anisotropic superconductive properties via the intermediate product.

Abstract: The present invention relates to a defect-free oxide high-critical temperature superconductor acicular crystal, that is, an oxide high-critical temperature superconductor acicular crystal that is substantially a perfect crystal and also relates to a method for producing the same, wherein such a crystal is essential for achieving superconducting electronic devices. The oxide high-critical temperature superconductor acicular crystal of the present invention includes an acicular crystal having a Bi2Sr2Ca2Cu3O10 (Bi-2223) crystal structure and is grown from a powder compact by heat-treating the powder compact in an oxygen atmosphere, wherein the powder compact contains an oxide having the Bi-2223 crystal structure and TeO2, CaO, or (SrCa)3TeO6. The achievement of the acicular crystal having the Bi-2223 crystal structure contributes to the development of superconducting electronic devices that have been theoretically proposed but have not been achieved.

Abstract: A method of producing an oriented oxide superconducting film. A metal oxyfluoride film is provided on a substrate. The metal oxyfluoride film comprises the constituent metallic elements of an oxide superconductor in substantially stoichiometric proportions. The film is then converted into the oxide superconductor in a processing gas having a total pressure less than atmospheric pressure.

Abstract: This invention relates to an oxide superconducting wire comprising oxide superconducting filaments, a high-density ceramic layer uniformly surrounding each of the filaments, and a silver sheath that directly covers the ceramic layer. The ceramic layer becomes non-superconducting when the filaments are cooled to an operating temperature of oxide superconductors. The oxide superconductors can be isolated by the ceramic that acts as a highly resistive material or an insulator. A high normal resistance is achieved, and thereby AC loss is reduced remarkably.

Abstract: A singlet bonding state may arise from the hybridization of molecular orbitals in a cluster containing several atoms in a material. This singlet state can move about the lattice as a bosonic preformed pair with low binding energy that is spatially bounded, has short range attractive interaction with other preformed pairs, and that can undergo Bose-Einstein condensation.

Abstract: For producing the superconducting material MgB2, a shapeable master alloy containing Mg and B, as well as at least one additional constituent, an LiMgB alloy is.1 The process permits the production of shaped elements of MgB2, for example by forging, casting, drawing, etc. 1 Translator's note: This English translation is based on what appears to be an incomplete sentence in the German-language document.

Abstract: The present invention relates to a metal base material for oxide superconducting thick films, in which an NiO layer is formed on at least one surface of a plate-shaped, tape-shaped, rod-shaped or wire-shaped non-magnetic alloy. The base material can be obtained through a manufacturing method, including the steps of: introducing a composite metal base material having an Ni layer joined on at least one surface of a plate-shaped or tape-shaped non-magnetic alloy into a furnace having an oxidative atmosphere, and heating/maintaining the alloy for a given period of time; suspending the oxidation reaction; and heat-treating the composite metal base material under the vacuum or the inert, to thereby eliminate an Ni group ferromagnetic layer, and to uniformize a composition of a non-oxidized alloy layer.

Abstract: Electrical or electro-mechanical apparatuses are disclosed that include a plurality of superconducting nanotubes or a plurality of superconducting nanotube bundles, especially superconducting carbon nanotubes and a stabilizing means or structure, where the nanotubes are maximally proximate and where the means stabilizes the nanotubes to increase mechanical durability. Methods of sorting nanotubes based on their conductive properties are also disclosed.

Abstract: Disclosed are high temperature and/or room temperature superconducting carbon nanotube compositions having either a critical doping range, a critical chirality or a mixture thereof, high temperature superconducting graphite compositions having a critical doping range, methods of achieving a phase-coherent, near zero resistivity superconducting state in multiwalled carbon nanotubes and bundles of superconducting carbon nanotubes, methods of achieving a large positive magnetoresistance in bundles of superconducting carbon nanotubes, and methods for making and using such nanotubes or bundles. Disclosed also are devices and apparatuses (e.g., magnetic reading heads, magnetic switch devices, magnetic imaging devices, and superconducting quantum interference devices) comprising superconducting carbon nanotubes and/or bundles of superconducting carbon nanotubes.

Abstract: The invention provides a superconducting wire rod which is filled with or interiorly includes a superconductor containing a boron, wherein the superconducting wire rod has a practical critical electric density even under a magnetic field. In a superconducting wire rod filled with or interiorly including a superconductor containing a boron, a metal powder is added to a superconducting material included in the superconducting wire rod, the metal powder is selected from at least one of an indium, a tin, a lead, an iron, a magnesium and an aluminum, the metal power having an average grain diameter equal to or less than 20 &mgr;m is 5 to 25 vol % dispersed in the superconducting material, a density of the superconducting material included in the superconducting wire rod after a final work is equal to or more than 90% a theoretical density, and a critical current density is equal to or more than 1000 A/cm2.

Abstract: A superconducting high-field magnet coil (1; 27; 38) comprising at least one radially inner (2) and at least one radially outer coil section (3; 32; 33), wherein at least the radially inner coil section (2) is wound in a solenoid-shaped fashion with an HTS (high temperature superconductor) band conductor (14; 20; 36) and wherein at least one superconducting connection is provided between the radially inner coil section and the radially outer coil section is characterized in that the superconducting connection comprises a first superconducting joint (5; 39) between two HTS band conductors at which the HTS band conductor of the radially inner coil section is connected to at least one further HTS band conductor (6; 21, 22; 29; 40), flatly overlapping same, such that the two HTS band conductors mutually subtend an angle of between 30° and 150°, and with a second superconducting joint (7; 41) which is electrically connected in series with the first, and which is geometrically disposed in a region of consid

Abstract: The invention comprises superconducting materials comprising metal borides of chemical formula Mg1-xXxB2, where 0<x≦0.5 and X is Ca, Be, Al, Li, Zn, Cu, Ni, Cr, Ti, Zr, Gd or any combination thereof, which exhibit superconductivity at temperatures exceeding 30K. The invention includes superconducting wires made from Mg1-xXxB2 where 0≦x≦0.5 which may be made using the “powder-in-tube” method whereby precursor powders for Mg1-xXxB2 are inserted into a metallic tube, which may then be subjected to a series of mechanical and thermal treatments to densify and react the boride superconductor and thereby provide superconducting wire. The boride precursor may be separated from the metal of the tube using an inert spacer material such as boron nitride. Such wires may be rebundled one or more times to provide a multifilamentary superconducting wire.

Abstract: In order to reduce the AC losses in a superconducting conductor element (31) subjected to an external magnetic field and through which a current flows, it is proposed to wind the tapes (17) comprising superconducting material of each layer (14, 15) at such a mutual distance (D) that the gap between the superconducting material of adjacent tapes is not smaller than a predetermined minimum value. The invention applies in particular to three-phase warm dielectric superconducting cables.

Abstract: The present invention relates to an MgB2-based superconductor that is easy to manufacture and well suited to mass production, and that exhibits excellent superconducting characteristics (such as a high critical current density) while still retaining the high critical temperature characteristics of MgB2. A powder mixture of magnesium, boron, and titanium is pressed into a pellet, and this product is sintered under an atmospheric pressure and other conditions (preferably at 600° C. or higher) to manufacture an MgB2-based superconductor in which titanium and/or a titanium compound are dispersed in polycrystalline MgB2. The composition of the MgB2-based superconductor is preferably adjusted to have an atomic ratio of Mg:B:Ti=x:2:y, 0.7<x<1.2 and 0.05<y<0.3, and more preferably 0.07<y<0.2, by adjusting the amounts in which the raw materials are added.

Abstract: A method of forming magnets using stacked superconducting films-disks of coated conductor is described. The superconducting material may be either from the oxide high temperature superconducting (HTS) class or the metallic/inter-metallic low temperature superconducting (LTS) class. An LTS metallic or inter-metallic compound can include Nb, Va, Ti, Hg, Pb, NbTi, Nb3Sn, Nb3Al, etc. or the more recently discover MgB2. An oxide superconductor refers to the RE-Ba2Cu3Ox compound, wherein RE=Y, Nd, La, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu; the Bi2Sr2CaCu2Ox, the (Bi, Pb)2 Sr2CaCu2Ox, Bi2Sr2Ca2Cu3Ox or (Bi, Pb)2Sr2Ca2Cu3Ox compound; the Tl2Ca1.5BaCu2Ox or Tl2Ca2Ba2Cu3Ox compound; or a compound involving substitution such as the Nd1+xBa2−xCu3Ox compounds.

Abstract: A Josephson junction having a barrier layer sandwiched by two superconductors wherein the superconductors include one or more elements selected from the group of Y, La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, one or more elements selected from the group of Ba, Sr and Ca, and Cu and oxygen, wherein the two superconductors each include at least five elements with compositions different from each other, or the barrier layer (5) includes one or more elements selected from the group of La, Nd, Sm and Eu, and one or more elements selected from the group of Y, Gd, Dy, Ho, Er, Tm, Yb and Lu.

Abstract: The invention relates to a method for coating shaped bodies made of a superconducting material based on (Y/SE)BaCuO. The invention is characterized in that a coating consisting of a coating material is applied to at least one part of a surface of the shaped body, whereby the coating material at least partially melts at a lower temperature than that of the material of the shaped body and/or is flowable at a lower temperature than that of said material. The shaped body with the applied coating material is heated to a temperature at which the material of the shaped body does not yet melt and/or is not yet flowable, however at which the coating material is at least partially melted thereon and/or is in a flowable state.

Abstract: A superconducting cable includes a first conductor layer formed of superconducting wires, and an insulating layer formed at the outer periphery of the first conductor layer. The first conductor layer is an assembly of a plurality of superconducting wires obtained by forming an RE based superconductor layer on a metal substrate. The current is limited by an electrical resistance generated when the current of the first conductor layer exceeds the critical current, thereby preventing the superconducting cable from being damaged. A superconducting cable line is formed of a base and a current limiter, which is formed by using the above-described superconducting cable. Accordingly, when a current exceeding the rated current of the base flows, it can be damped.

Abstract: A process for producing a metal article coated with a metal layer having a biaxially textured surface, which process comprises eletctrodepositing the metal layer on a biaxially textured metal substrate such that the surface of the metal layer has the same texture as that of the substrate.

Abstract: The present invention is an tri-phase epitaxy method for preparing a single crystal oxide thin film, comprising the steps of depositing on a substrate an oxide thin film serving as a seed layer and having the same composition as that of an oxide thin film to be formed, depositing on the seed layer a thin film comprising a substance capable of being melted and liquidized by heat from the substrate and dissolving the oxide to be subsequent by deposited onto the seed layer, heating the substrate to form a liquid layer, and depositing an oxide on the seed layer through the liquid layer by use of a vapor-phase epitaxy method to form the single crystal oxide thin film. In this method, the oxygen partial pressure on the liquid layer is set in the range of 1.0 to 760 Torr during the film-forming step.

Abstract: A high temperature superconductor film having a smooth surface is constituted from A, B, C, Cu and oxygen in a composition that is represented by the chemical formula AxB(3-x-y)CyCuzO7-d (where x≦0.99, y≦1.99, 2.60≦(x+y)≦2.98, 2.70≦z≦3.30 and (7-d) is a value that satisfies the requirement of valence), when one or more element selected from the group of Gd, Dy, Ho, Er, Tm, Yb, Lu and Y is represented by A, one or more element selected from the group of La, Nd, Sm and Eu is represented by B and Ba1-sSrs (where 0≦s≦0.50) is represented by C.

Abstract: A production method for a polycrystalline thin film, depositing polycrystalline thin film on a polycrystalline substrate. The temperature of the polycrystalline substrate is set within a range from 150° C. to 250° C., the ion beam energy of the ion beam is adjusted within a range from 175 eV to 225 eV, and the ion beam is irradiated at an angle of incidence from 50° to 60° with respect to the normal for the film forming surface of the polycrystalline substrate. By this production method, the grain boundary inclination angle, formed by identical crystal axes of the crystal grains along a plane parallel to the film forming surface of the polycrystalline substrate, is limited to 20° or less, and a polycrystalline thin film having a strong crystal orientation can be stably produced.

Abstract: The inventive superconducting wire comprises a substrate and a continuous layer of atomically ordered superconducting material. The inventive wire has a length greater than 10 meters.