Superconductivity of powder-in-tube Sr0.6K0.4Fe2As2 wires

Abstract

Nb-sheathed Sr0.6K0.4Fe2As2 superconducting wires have been fabricated using the powder-in-tube (PIT) method for the first time and the superconducting properties of the wires have been investigated. The transition temperature (Tc) of the Sr0.6K0.4Fe2As2 wires is confirmed to be as high as 35.3 K. Most importantly, Sr0.6K0.4Fe2As2 wires exhibit a very weak Jc-field dependence behavior even the temperature is very close to Tc. The upper critical field Hc2(0) value can exceed 140 T, surpassing those of MgB2 and all the low temperature superconductors. Such high Hc2 and superior Jc-field performance make the 122 phase SrKFeAs wire conductors a powerful competitor potentially useful in very high field applications.

15 pages, 6 figures

References in corpus (15)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO${}_{1-x}$F${}_x$FeAs
• Superconductivity up to 37 K in (A1-xSrx)Fe2As2 with A=K and Cs
• Pressure induced superconductivity in CaFe${}_2$As${}_2$
• High-Temperature Superconductivity in Eu0.5K0.5Fe2As2
• Fishtail effect and the vortex phase diagram of single crystal Ba0.6K0.4Fe2As2
• Synthesis and Properties of CaFe${}_2$As${}_2$ Single Crystals
• Upper critical field, anisotropy, and superconducting properties of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ single crystals
• Superconducting properties of SmO1-xFxFeAs wires with Tc = 52 K prepared by the powder-in-tube method
• Superconductivity at 34.7 K in the iron arsenide Eu0.7Na0.3Fe2As2
• Transport properties and superconductivity in $B{a}_{1-x}{M}_{x}F{e}_{2}A{s}_2$ (M=La and K) with double FeAs layers
• Superconductivity in Co-doped SmFeAsO
• Evidence for electromagnetic granularity in the polycrystalline iron-based superconductor LaO0.89F0.11FeAs
• Pressure Effect on the superconducting properties of LaO_{1-x}F_{x}FeAs(x=0.11) superconductor
• Structural and critical current properties in polycrystalline SmO1-xFxFeAs

Cited by in corpus (22)

• Recent advances in iron-based superconductors toward applications
• Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides
• Progress in wire fabrication of iron-based superconductors
• The behavior of grain boundaries in the Fe-based superconductors
• Fabrication of the iron-based superconducting wire using Fe(Se, Te)
• Large Transport Critical Current Densities of Ag Sheathed (Ba,K)Fe2As2+Ag Superconducting Wires Fabricated by an ex-situ Powder-in-Tube (PIT) Process
• Large transport critical currents of powder-in-tube Sr0.6K0.4Fe2As2/Ag superconducting wires and tapes
• High transport critical current densities in textured Fe-sheathed Sr1-xKxFe2As2+Sn superconducting tapes
• Hot pressing to enhance the transport Jc of Sr0.6K0.4Fe2As2 superconducting tapes
• Thin Film Growth and Device Fabrication of Iron-Based Superconductors
• 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
• Evidence for electromagnetic granularity in polycrystalline Sm1111 iron-pnictides with enhanced phase purity
• The role of silver addition on the structural and superconducting properties of polycrystalline Sr0.6K0.4Fe2As2
• Role of heat and mechanical treatments in the fabrication of superconducting Ba0.6K0.4Fe2As2 ex-situ Powder-In-Tube tapes
• Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2
• Fishtail effect and the vortex phase diagram of high-entropy alloy superconductor
• Improved transport critical currents in Ag and Pb co-doped BaxK1-xFe2As2 superconducting tapes
• Large transport critical currents and magneto-optical imaging of textured Sr1-xKxFe2As2 superconducting tapes
• Enhancement of transport critical current density of SmFeAsO1-xFx tapes fabricated by an ex-situ powder-in-tube method with a Sn-presintering process
• Upper critical field, critical current density and thermally activated flux flow in CaFFe0.9Co0.1As superconductor
• Calculation of the transport critical current density of c-axis textured 122 iron-based superconductors