Comparative High Field Magneto-Transport of Rare Earth Oxypnictides with Maximum Transition Temperatures

Abstract

The recent discovery of a new class of superconducting oxypnictides with high transition temperatures may have profound implications for understanding unconventional high-temperature superconductivity. Like the cuprates, the oxypnictides seem to manifest an interleaving of charge donor and superconducting layers emerging upon doping of an antiferromagnetic parent semi-metal. Here we report magneto-transport measurements of three rare earth (Re = La, Nd, Sm) oxypnicide compounds with the transition temperatures near the maximum reported to date, in very high DC and pulsed magnetic fields up to 45 and 54 T, respectively. Our resistivity, Hall coefficient and critical magnetic fields data suggest that these oxypnictide superconductors bridge the gap between MgB${}_2$ and YBaCu${}_3$O${}_{7-x}$ as far as electromagnetic and vortex properties are concerned.

6 pages, 3 figures

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Cited by in corpus (61)

• Superconductivity in Iron Compounds
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• New Fe-based superconductors: properties relevant for applications
• Vortex phase diagram of Ba(Fe0.93Co0.07)2As2 single crystals
• Determination of anisotropic Hc2 up to 60 T in (Ba0.55K0.45)Fe2As2 single crystals
• High magnetic field scales and critical currents in SmFeAs(O,F) crystals: promising for applications
• Superconducting Phase-Diagram of H3S under High Magnetic Fields
• Properties of a two orbital model for oxypnictide superconductors: Magnetic order, B_2g spin-singlet pairing channel, and its nodal structure
• Psuedo-isotropic upper critical field in cobalt-doped SrFe2As2 epitaxial films
• Muon-spin rotation studies of SmFeAsO_0.85 and NdFeAsO_0.85 superconductors
• Two-gap and paramagnetic pair-breaking effects on upper critical field of SmFeAsO${}_{0.85}$ and SmFeAsO${}_{0.8}$F${}_{0.2}$ single crystals
• Feshbach resonances and mesoscopic phase separation near a quantum critical point in multiband FeAs-based superconductors
• Ultra-high critical current densities, the vortex phase diagram and the effect of granularity of the stoichiometric high-Tc superconductor, CaKFe${}_4$As${}_4$
• Intergrain current flow in a randomly oriented polycrystalline SmFeAsO0.85 oxypnictide
• Phase diagram and superconductivity at 58.1 K in α-FeAs free SmFeAsO1-xFx
• Upper critical field and fluctuation conductivity in the critical regime of doped SmFeAsO
• Thermally activated energy and flux flow Hall effect of Fe1+y(Te1-xSx)z
• Fe-based superconducting thin films on metallic substrates: growth, characteristics and relevant properties
• Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
• Critical current scaling and anisotropy in oxypnictide superconductors
• Superconductivity Above 40 K Observed in a New Iron Arsenide Oxide (Fe2As2)(Ca4(Mg,Ti)3Oy)
• Enhancement of critical current densities in (Ba,K)Fe2As2 wires and tapes using HIP technique
• Combined microstructural and magneto optical study of current flow in polycrystalline forms of Nd and Sm Fe-oxypnictides
• Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes
• Transition Temperature and Upper Critical Field in SmFeAsO1-xFx Synthesized at Low Heating Temperatures
• Vortex dynamics and irreversibility line in optimally doped SmFeAsO${}_{0.8}$F${}_{0.2}$ from ac susceptibility and magnetization measurements
• High-field phase-diagram of Fe arsenide superconductors
• Intrinsic and extrinsic pinning in NdFeAs(O,F): vortex trapping and lock-in by the layered structure
• Lower Critical Field, Anisotropy, and Two-Gap Features of LiFeAs
• Multigap nodeless superconductivity in CsCa2Fe4As4F2 probed by heat transport
• AC susceptibility investigation of vortex dynamics in nearly-optimally doped REFeAsO${}_{1-x}$F${}_x$ superconductors (RE = La, Ce, Sm)
• Effect of high pressure annealing on the normal state transport of LaO0.5F0.5BiS2
• Improved transport critical currents in Ag and Pb co-doped BaxK1-xFe2As2 superconducting tapes
• Enhancement of Critical Current Densities in (Ba,K)Fe2As2 by 320 MeV Au Irradiation in Single Crystals and by High-Pressure Sintering in PIT Wires
• Enhanced high-field transport critical current densities observed for the ex-situ PIT processed Ag/(Ba,K)Fe2As2 thin tapes
• Systematic Study on Fluorine-doping Dependence of Superconducting and Normal State Properties in LaFePO1-xFx
• Disorder effects and current percolation in FeAs based superconductors
• Neutron Irradiation of Sm-1111
• Transport anomalies and quantum criticality in electron-doped cuprate superconductors
• Disorder-dependent superconducting phase-diagram at high magnetic fields in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$ ($x\sim 0.4$)
• Point-contact study of ReFeAs(1-x)Fx (Re=La, Sm) superconducting films
• Ab initio electron dynamics in high electric fields: accurate predictions of velocity-field curves
• Revisiting the electron-doped SmFeAsO: enhanced superconductivity up to 58.6 K by Th and F codoping
• Density effect on critical current density and flux pinning properties of polycrystalline SmFeAsO1-xFx superconductor
• High upper critical field (120 T) with small anisotropy of highly hydrogen-substituted SmFeAsO epitaxial film
• Critical current anisotropy in Nd-1111 single crystals and the infuence of neutron irradiation
• Critical properties of superconducting Ba1-xKxFe2As2
• Electronic Behavior of Superconducting SmFeAsO0.75
• Effects of post-annealing and cobalt co-doping on superconducting properties of (Ca,Pr)Fe2As2 single crystals
• α-FeAs-free SmFeAsO1-xFx by low temperature sintering with slow cooling
• Anisotropic superconducting properties of aligned Sm${}_{0.95}$La${}_{0.05}$FeAsO${}_{0.85}$F${}_{0.15}$ microcrystalline powder
• Effect of the indium addition on the superconducting property and the impurity phase in polycrystalline SmFeAsO1-xFx
• Multi-band superconductivity in LaFeAsO_{0.9}F_{0.1} single crystals probed by high-field vortex torque magnetometry
• $c$-axis charge gap and its critical point in the heavily doped Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Evidence of the isoelectronic character of F doping in SmFeAsO(1-x)F(x): a first-principles investigation
• Resistivity scaling in 1111 iron-pnictide superconductors
• Upper critical field, pressure-dependent superconductivity and electronic anisotropy of Sm${}_4$Fe${}_2$As${}_2$Te${}_{1-x}$O${}_{4-y}$F$y$
• Improvement in granularity of NdFeAsO0.8F0.2 superconductor through Ag doping
• Superconducting and critical properties of PrOFe0.9Co0.1As: effect of P doping
• Fluorine-substitution-dependent phase diagram and superconducting properties of Sm-based oxypnictides synthesized by a high-pressure growth technique