Fabrication of the iron-based superconducting wire using Fe(Se, Te)

Abstract

We have fabricated the Fe(Se, Te) superconducting wire by a special process based on a powder-in-tube method. The pure Fe tube plays the role of not only the sheath but also the raw material for synthesizing the superconducting phases. We succeeded in observing zero resistivity current on the current-voltage measurements for the Fe(Se, Te) wire. Introduction of the pinning centers and fabricating a multi-core wire will enhance the critical current density for the next step.

16 pages, 6 figures, to appear in Applied Physics Express (APEX)

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• Large transport critical currents of powder-in-tube Sr0.6K0.4Fe2As2/Ag superconducting wires and tapes
• Epitaxial Growth of Superconducting Ba(Fe1-xCox)2As2 Thin Films on Technical IBAD-MgO Substrates
• Phase diagram and superconductivity at 58.1 K in α-FeAs free SmFeAsO1-xFx
• High transport critical current densities in textured Fe-sheathed Sr1-xKxFe2As2+Sn superconducting tapes
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• Effective Ex-Situ Fabrication of F-Doped SmFeAsO Wire for High Transport Critical Current Density
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• High transport Jc in magnetic fields up to 28 T of stainless steel/Ag double sheathed Ba122 tapes fabricated by scalable rolling process
• Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes
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• Fabrication of binary FeSe superconducting wires by novel diffusion process
• Evidence for electromagnetic granularity in polycrystalline Sm1111 iron-pnictides with enhanced phase purity
• Superconducting properties and magneto-optical imaging of Ba0.6K0.4Fe2As2 PIT wires with Ag addition
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• Large, Homogeneous, and Isotropic Critical Current Density in Oxygen-Annealed Fe1+yTe0.6Se0.4 Single Crystal
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• Superconducting properties of FeSe wires and tapes prepared by gas diffusion technique
• Enhancement of critical current density in (Ba,Na)Fe2As2 round wires using high-pressure sintering
• Magneto-optical imaging and transport properties of FeSe superconducting tapes prepared by diffusion method
• Improved transport critical currents in Ag and Pb co-doped BaxK1-xFe2As2 superconducting tapes
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• Enhanced high-field transport critical current densities observed for the ex-situ PIT processed Ag/(Ba,K)Fe2As2 thin tapes
• Enhancement of superconducting properties in FeSe wires using a quenching technique
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• Microstructural and transport properties of superconducting FeTe0.65Se0.35 crystals
• Crystal structure instability of FeSe grains: Formation of non-superconducting phase at the grain surface
• Microstructure and transport properties of FeTe0.5Se0.5 superconducting wires fabricated by ex-situ Powder-in-tube process
• Analysis of interdiffusion between SmFeAsO0.92F0.08 and metals for ex situ fabrication of superconducting wire
• α-FeAs-free SmFeAsO1-xFx by low temperature sintering with slow cooling
• Transport properties of iron-based FeTe0.5Se0.5 superconducting wire
• Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process
• Calculation of the transport critical current density of c-axis textured 122 iron-based superconductors
• High critical current density and low anisotropy in textured Sr1-xKxFe2As2 tapes for high field applications