Electron Correlations in the Low Carrier Density LaFeAsO0.89F0.11 Superconductor (Tc = 28 K)

Abstract

The crystal structure and numerous normal and superconducting state properties of layered tetragonal (P4/nmm) LaFeAsO, with F-doping of 11 %, are reported. Resistivity measurements give an onset transition temperature Tc = 28.2 K, and low field magnetic susceptibility data indicate bulk superconductivity. In applied magnetic field, analysis of the resistive transition results in a critical field Hc2 = 30 T and a coherence length 35 A. An upper limit for the electron carrier concentration of 1 x 10^21 cm-3 is inferred from Hall data just above Tc. Strong electron-electron correlations are suggested from temperature-dependent resistivity, Seebeck coefficient, and thermal conductivity data. Anomalies near Tc are observed in both Seebeck coefficient and thermal conductivity data.

13 pages, 8 figures

References in corpus (4)

• LaFeAsO${}_{1-x}$F${}_x$: A low carrier density superconductor near itinerant magnetism
• Spin correlations in the electron-doped high-transition-temperature superconductor Nd{2-x}Ce{x}CuO{4+/-delta}
• Superconducting properties of Fe-based layered superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Nodal Gap in Fe-Based Layered Superconductor LaO_0.9F_{0.1-delta}FeAs Probed by Specific Heat Measurements

Cited by in corpus (131)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Superconductivity at 22 K in Co-doped BaFe2As2 Crystals
• Density functional study of FeS, FeSe and FeTe: Electronic structure, magnetism, phonons and superconductivity
• To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report
• Very High Field Two-Band Superconductivity in LaFeAsO_0.89F_0.11
• Coherence-incoherence crossover in the normal state of iron-oxypnictides and importance of the Hund's rule coupling
• The challenge of unravelling magnetic properties in LaFeAsO
• Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1-xCox)2As2
• Superconductivity in Co-doped LaFeAsO
• Phase transitions in LaFeAsO: structural, magnetic, elastic, and transport properties, heat capacity and Mossbauer spectra
• Electron-Hole Symmetry and Magnetic Coupling in Antiferromagnetic LaOFeAs
• Superconductivity induced by Ni doping in BaFe${}_2$As${}_2$
• A key role for unusual spin dynamics in ferropnictides
• High - Temperature Superconductivity in Iron Based Layered Compounds
• High-Temperature Superconductivity in Eu0.5K0.5Fe2As2
• Effect of Co doping on superconductivity and transport properties in SmFe${}_{1-x}$Co${}_x$AsO
• Superconductivity induced by cobalt doping in iron-based oxyarsenides
• Progress in wire fabrication of iron-based superconductors
• Field and Temperature Dependence of the Superfluid Density in LaO_{1-x}F_xFeAs Superconductors: A Muon Spin Relaxation Study
• Superconductivity induced by La doping in Sr1-xLaxFBiS2 system
• Space group symmetry, spin-orbit coupling and the low energy effective Hamiltonian for iron based superconductors
• Spin susceptibility, phase diagram, and quantum criticality in the electron-doped high Tc Superconductor Ba[Fe(1-x)Co(x)]2As2
• Low temperature specific heat of the hole-doped Ba_{0.6}K_{0.4}Fe_2As_2 single crystals and electron-doped SmFeAsO_{0.9}F_{0.1} samples
• Fully Gapped Superconducting State Based on a High Normal State Quasiparticle Density of States in Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ Single Crystals
• Synthesis, crystal structure and chemical stability of the superconductor FeSe_{1-x}
• Studies of Impurity-Doping Effects and NMR Measurement5s of La1111 and/or Nd 1111 Fe-Pnictide Superconductors
• Model for the Magnetic Order and Pairing Channels in Fe Pnictide Superconductors
• (Sr_3Sc_2O_5)Fe_2As_2 as a possible parent compound for FeAs-based superconductors
• Comparative High Field Magneto-Transport of Rare Earth Oxypnictides with Maximum Transition Temperatures
• Universal Decomposition of the Low-Frequency Conductivity Spectra of Iron-Pnictides Uncovering Fermi-Liquid Behavior
• Upper critical fields well above 100 T for the superconductor SmFeAsO${}_{0.85}$F${}_{0.15}$ with T${}_c$ = 46 K
• Electronic structure and Magnetism in BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$
• 19-F NMR Investigation of Iron-pnictide Superconductor LaFeAsO(0.89)F(0.11)
• Evidence for two distinct scales of current flow in polycrystalline Sm and Nd iron oxypnictides
• Point-Contact Spectroscopy of Iron-Based Layered Superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Properties of a two orbital model for oxypnictide superconductors: Magnetic order, B_2g spin-singlet pairing channel, and its nodal structure
• Influence of the rare-earth element on the effects of the structural and magnetic phase transitions in CeFeAsO, PrFeAsO, and NdFeAsO
• Structure and Anisotropic Properties of BaFe2-xNixAs2 (x = 0, 1, 2) Single Crystals
• Evidence for Strong Itinerant Spin Fluctuations in the Normal State of CeFeAsO(0.89)F(0.11) Iron-Oxypnictides
• Electrodynamics of electron doped iron-pnictide superconductors: Normal state properties
• Superconductivity in LaFeAs${}_{1-x}$P${}_x$O: effect of chemical pressures and bond covalency
• 59-Co and 75-As NMR Investigation of Electron-Doped High Tc Superconductor BaFe(1.8)Co(0.2)As(2) (Tc = 22K)
• Observation of the Josephson effect in Pb/(Ba,K)Fe2As2 single crystal junctions
• High-Field Pauli-Limiting Behavior and Strongly Enhanced Upper Critical Magnetic Fields near the Transition Temperature of an Arsenic-Deficient LaO_0.9F_0.1FeAs_(1-δ) Superconductor
• Superconducting properties of SmO1-xFxFeAs wires with Tc = 52 K prepared by the powder-in-tube method
• Nuclear magnetic relaxation and superfluid density in Fe-pnictide superconductors: An anisotropic \pm s-wave scenario
• Electronic Structure and Electron Correlation in LaFeAsO_{1-x}F_x and LaFePO_{1-x}F_x
• Muon Spin Rotation Measurement of the Magnetic Field Penetration Depth in Ba(Fe0.93 Co0.07)2 As2 : Evidence for Multiple Superconducting Gaps
• Intergrain current flow in a randomly oriented polycrystalline SmFeAsO0.85 oxypnictide
• Orbital and spin effects for the upper critical field in As deficient disordered Fe pnictide superconductors
• Superconductivity above 50 K in Tb${}_{1-x}$Th${}_x$FeAsO
• Phonon Density of States of LaFeAsO1-xFx
• Superconductivity in single crystals of LaFePO
• Evidence for electromagnetic granularity in the polycrystalline iron-based superconductor LaO0.89F0.11FeAs
• Large decrease in the critical temperature of superconducting LaFeAsO0.85 compounds doped with 3% atomic weight of nonmagnetic Zn impurities
• Vortex-glass phase transition and superconductivity in an under- doped (Ba,K)Fe2As2 single crystal
• Seebeck effect in Fe1+xTe1-ySey single crystals
• Universal behavior of the upper critical field in iron based superconductors
• Magnetotransport of La0.70ca0.3-xsrxmno3 (Ag): A Potential Room Temperature Bolometer and Magnetic Sensor
• Interplay between Fe and Nd magnetism in NdFeAsO single crystals
• Effect of pressure on the superconducting critical temperature of La[O_{0.89}F_{0.11}]FeAs and Ce[O_{0.88}F_{0.12}]FeAs
• Determining gap nodal structures in Fe-based superconductors: angle-dependence of the low temperature specific heat in an applied magnetic field
• Combined microstructural and magneto optical study of current flow in polycrystalline forms of Nd and Sm Fe-oxypnictides
• Pressure effects on the electron-doped high Tc superconductor BaFe(2-x)Co(x)As(2)
• Large Seebeck coefficients in Iron-oxypnictides : a new route towards n-type thermoelectric materials
• Thermal properties of SmFeAs(O1-xFx) as probe of the interplay between electrons and phonons
• Neutron-Inelastic-Scattering Peak by Dissipationless Mechanism in the s++ -wave State in Iron-based Superconductors
• Magnetic Phase Transitions in NdCoAsO
• Anion height dependence of Tc and density of states in iron based superconductors
• Synthesis and physical properties of $\mathbf{La}{\mathbf{O}}_{1-\mathbf{x}}{\mathbf{F}}_{\mathbf{x}}\mathbf{FeAs}$
• Iron Based Superconductors: Pnictides versus Chalcogenides
• In-situ fabrication of cobalt-doped SrFe2As2 thin films by using pulsed laser deposition with excimer laser
• Thermodynamic properties of Ba1-xMxFe2As2 (M = La and K)
• Bulk Synthesis of Iron-based Superconductors
• Negative thermal expansion and antiferromagnetism in the actinide oxypnictide NpFeAsO
• 57Fe Mossbauer spectroscopy and magnetic measurements of oxygen deficient LaFeAsO
• BaT2As2 Single Crystals (T = Fe, Co, Ni) and Superconductivity upon Co-doping
• Thermoelectric properties of iron-based superconductors and parent compounds
• Magnetic and Superconducting Properties of FeAs-based High-Tc Superconductors with Gd
• Investigation of Superconducting Gap Structure in TbFeAsO${}_{0.9}$F${}_{0.1}$ using Point Contact Andreev Reflection
• Transport and infrared properties of SmFeAs(O1-xFx): from SDW to superconducting ordering
• Physical property characterization of single step synthesized NdFeAsO0.80F0.20 bulk 50K superconductor
• The magnetic moment enigma in Fe-based high temperature superconductors
• Doping dependence of upper critical field and Hall resistivity in LaFeAsO1-xFx
• Thermoelectric studies of KxFe2-ySe2: weakly correlated superconductor
• Electronic Structure of CeFeAsO1-xFx (x=0, 0.11/x=0.12) compounds
• Resistivity saturation in PrFeAsO${}_{1-x}$F${}_y$ superconductor: An evidence of strong electron-phonon coupling
• Electronic phase diagram in the new BiS2-based Sr1-xLaxFBiS2 system
• Superconductivity in CeO_{1-x}F_xFeAs with upper critical field of 94 T
• Effect of columnar defects on the pinning properties of NdFeAsO0.85 conglomerate particles
• Upper critical field, superconducting energy gaps, and Seebeck coefficient in La0.8Th0.2OFeAs
• Temperature - pressure phase diagram of the superconducting iron pnictide LiFeP
• Enhancement in superconducting transition temperature and upper critical field of LaO0.8F0.2FeAs with antimony doping
• Theory of High-Tc Superconductivity: Transition Temperature
• Theory of High-Tc Superconductivity: Accurate Predictions of Tc
• Systematic Study on Fluorine-doping Dependence of Superconducting and Normal State Properties in LaFePO1-xFx
• Can antiferromagnetism and superconductivity coexist in the high-field paramagnetic superconductor Nd(O,F)FeAs?
• High Temperature Superconductivity and Effective Gravity
• NMR measurements of intrinsic spin susceptibility in LaFeAsO(0.9)F(0.1)
• Synthesis of SmFeAsO by an Easy and Versatile Route and its Physical Property Characterization
• Electronic Structure of New AFFeAs Prototype of Iron Arsenide Superconductors
• Possible Superconductivity in Fe-Sb Based Materials: Density Functional Study of LiFeSb
• Paraconductivity of K-doped SrFe2As2 superconductor
• Hall coefficient and Hc2 in underdoped LaFeAsO0.95F0.05
• Analysis of transport properties of iron pnictides: spin-fluctuation scenario
• Point-contact study of ReFeAs(1-x)Fx (Re=La, Sm) superconducting films
• Role of Magnetism in Superconductivity of BaFe2As2: Study of 5d Au-doped Crystals
• High magnetic field superconductivity in a two-band superconductor
• Electronic phase diagram of NdFe1-xRhxAsO
• Striped antiferromagnetic order and electronic properties of stoichiometric LiFeAs from first-principles calculations
• Fully gapped superconductivity in SrNi${}_2$P${}_2$
• Density effect on critical current density and flux pinning properties of polycrystalline SmFeAsO1-xFx superconductor
• Large single crystal growth of BaFe1.87Co0.13As2 using a nucleation pole
• Spatial competition of the ground states in 1111 iron pnictides
• Comparative study on the thermoelectric effect of parent oxypnictides La$T$AsO ($T$ = Fe, Ni)
• Striped antiferromagnetism and electronic structures of SrFeAsF and their implications
• Thermal conductivity and annealing effects in the iron-based superconductor FeSe${}_{0.3}$Te${}_{0.7}$
• Distorted magnetic orders and electronic structures of tetragonal FeSe from first-principles
• Normal-state transport properties of PrFeAsO${}_{1-x}$F${}_y$ superconductor
• Lattice Parameters Guide Superconductivity in Iron-Arsenides
• A direct probe of the variability of Coulomb correlation in Fe-pnictide superconductors
• Large thermopower in the antiferromagnetic semiconductor BaMn${}_2$Bi${}_2$
• Defect states in LiFeAs as seen by low temperature scanning tunneling microscopy and spectroscopy
• Thermoelectricity and electronic correlations enhancement in FeS by slight Se substitution
• Study of Ni and Zn doped CeOFeAs: Effect on the structural transition and specific heat capacity
• Effect of inelastic scattering on the nuclear magnetic relaxation rate 1/T1T in iron-based superconductors
• Quantum Griffiths singularity in a three-dimensional superconductor to Anderson critical insulator transition
• One-step atmospheric pressure synthesis of the ground state of Fe based LaFeAsO1-d superconductor
• Introduction to High-Temperature Superconductivity for Solid State Chemists
• Effects of the sintering atmosphere on the superconductivity of SmFeAsO1-xFx compounds
• The thermoelectric conversion efficiency problem: Insights from the electron gas thermodynamics close to a phase transition