Upper critical field, Hall effect and magnetoresistance in the iron-based layered superconductor LaFeAsO_{0.9}F_{0.1-δ}

Abstract

By using a two-step method, we successfully synthesized the iron based new superconductor LaFeAsO_{0.9}F_{0.1-δ}$. The resistive transition curves under different magnetic fields were measured, leading to the determination of the upper critical field Hc2(T) of this new superconductor. The value of Hc2 at zero temperature is estimated to be about 50 Tesla roughly. In addition, the Hall effect and magnetoresistance were measured in wide temperature region. A negative Hall coefficient R_H has been found, implying a dominant conduction mainly by electron-like charge carriers in this material. The charge carrier density determined at 100 K is about 9.8E20cm^{-3}, which is close to the cuprate superconductors. It is further found that the magnetoresistance does not follow Kohler's law. Meanwhile, the different temperature dependence behaviors of resistivity, Hall coefficient, and magnetoresistance have anomalous properties at about 230 K, which may be induced by some exotic scattering mechanism.

10 pages, 7 figures

References in corpus (10)

• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• LaFeAsO${}_{1-x}$F${}_x$: A low carrier density superconductor near itinerant magnetism
• Superconductivity in iron-based F-doped layered quaternary compound Nd[O1-xFx]FeAs
• Very High Field Two-Band Superconductivity in LaFeAsO_0.89F_0.11
• Superconductivity at 25 K in hole doped $(L{a}_{1-x}S{r}_x)OFeAs$
• Superconducting properties of Fe-based layered superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Fabrication and superconductivity of NaxTaS2 crystals
• 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
• Fully Band Resolved Scattering Rate in MgB2 Revealed by Nonlinear Hall Effect and Magnetoresistance Measurements
• Normal state resistivity, upper critical field and Hall effect in superconducting perovskite $MgCN{i}_3$

Cited by in corpus (90)

• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• 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 electronic phase diagram of the LaO1-xFxFeAs superconductor
• Transition of stoichiometricSr2VO3FeAs to a superconducting state at 37.2 K
• Theory of magnetic excitations in iron-based layered superconductors
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Commensurate Spin Density Wave in LaOFeAs: A Local Probe Study
• Superconductivity induced by Ni doping in BaFe${}_2$As${}_2$
• High - Temperature Superconductivity in Iron Based Layered Compounds
• Field and Temperature Dependence of the Superfluid Density in LaO_{1-x}F_xFeAs Superconductors: A Muon Spin Relaxation Study
• 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
• Upper critical field, anisotropy, and superconducting properties of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ single crystals
• (Sr_3Sc_2O_5)Fe_2As_2 as a possible parent compound for FeAs-based superconductors
• Interplay of Rare Earth and Iron magnetism in RFeAsO with R = La, Ce, Pr, and Sm: A muon spin relaxation study and symmetry analysis
• Single crystals of LnFeAsO1-xFx (Ln=La, Pr, Nd, Sm, Gd) and Ba1-xRbxFe2As2: growth, structure and superconducting properties
• Upper critical fields well above 100 T for the superconductor SmFeAsO${}_{0.85}$F${}_{0.15}$ with T${}_c$ = 46 K
• Point-Contact Spectroscopy of Iron-Based Layered Superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Evidence for Two Gaps and Breakdown of the Uemura Plot in Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ Single Crystals
• Intrinsic Properties of Stoichiometric LaOFeP
• Superconductivity induced by doping Pd in SrFe2-xPdxAs2
• Superconductivity and phase diagrams in 4d- and 5d-metal-doped iron arsenides SrFe_{2-x}M_xAs_2 (M = Rh, Ir, Pd)
• Tailoring the Superconductivity and Antiferromagnetic Order in SrFe2-xRhxAs2
• Superconductivity at 22.3 K in SrFe2-xIrxAs2
• Magnetic Ordering and Negative Thermal Expansion in PrFeAsO
• Strong-coupling superconductivity in layered nickel-based LaO${}_{1-x}$F${}_x$NiAs
• Density functional study of BaNi${}_2$As${}_2$: Electronic structure, phonons and electron-phonon superconductivity
• Crystal and magnetic structure of the oxypnictide superconductor LaO(1-x)FxFeAs: evidence for magnetoelastic coupling
• 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
• SrFeAsF as a parent compound for iron pnictide superconductors
• Hall effect and magnetoresistance in single crystals of NdFeAsO${}_{1-x}$F${}_x$
• Magnetization Relaxation and Collective Vortex Pinning in the Fe-Based Superconductor SmFeAsO_0.9F_0.1
• Orbital and spin effects for the upper critical field in As deficient disordered Fe pnictide superconductors
• Superconductivity in Fluorine-Arsenide Sr_{1-x}La_xFeAsF
• Anisotropy of superconducting single crystal SmFeAsO_(0.8)F_(0.2) studied by torque magnetometry
• Vortex-glass phase transition and superconductivity in an under- doped (Ba,K)Fe2As2 single crystal
• Neutron scattering study of the oxypnictide superconductor La(O,F)FeAs
• Superconductivity and topological aspects of the rock-salt carbides NbC and TaC
• Physical properties of noncentrosymmetric superconductor Ru${}_7$B${}_3$
• Tuning the electronic and the crystalline structure of LaBi by pressure
• Synthesis and physical properties of $\mathbf{La}{\mathbf{O}}_{1-\mathbf{x}}{\mathbf{F}}_{\mathbf{x}}\mathbf{FeAs}$
• Anion height dependence of Tc and density of states in iron based superconductors
• In-situ fabrication of cobalt-doped SrFe2As2 thin films by using pulsed laser deposition with excimer laser
• Iron Based Superconductors: Pnictides versus Chalcogenides
• Enhanced Orbital Degeneracy in Momentum Space for LaOFeAs
• Synthesis, structural and transport properties of the hole-doped Superconductor Pr_{1-x}Sr_xFeAsO
• Enhanced $T_c$ and multiband superconductivity in the fully-gapped ReBe${}_{22}$ superconductor
• Nodeless superconductivity and preserved time-reversal symmetry in the noncentrosymmetric Mo3P superconductor
• Progressive slowing down of spin fluctuations in underdoped LaFeAsO${}_{1-x}$F${}_x$
• Neutron-irradiation effects in LaO0.9F0.1FeAs superconductor
• CaPtAs: a new noncentrosymmetric superconductor
• Spin-triplet superconductivity in Weyl nodal-line semimetals
• Transport and infrared properties of SmFeAs(O1-xFx): from SDW to superconducting ordering
• Raman spectra in iron-based quaternary CeO${}_{1-x}$F${}_x$FeAs and LaO${}_{1-x}$F${}_x$FeAs
• AC susceptibility investigation of vortex dynamics in nearly-optimally doped REFeAsO${}_{1-x}$F${}_x$ superconductors (RE = La, Ce, Sm)
• Valence band and core level photoemission spectros-copy of LaFeAsO${}_{1-x}$F${}_x$
• Optical Study of LaO_0.9F_0.1FeAs: Evidence for a Weakly Coupled Superconducting State
• High-Pressure Crystal Growth, Superconducting Properties, and Electronic Band Structure of Nb2P5
• Synthesizing and characterization of hole doped nickel based layer superconductor (La${}_{1-x}$Sr${}_x$)ONiAs
• Synthesizing and characterization of hole doped nickel based superconductor (La${}_{1-x}$Sr${}_x$)NiAsO
• Structural and transport properties of Sr2VO{3-delta}FeAs superconductors with different oxygen deficiencies
• Electronic Structure of New AFFeAs Prototype of Iron Arsenide Superconductors
• The Critical Magnetic Field of Anisotropic Two-Band Magnetic Superconductors
• Upper critical field, penetration depth, and depinning frequency of the novel high-temperature superconductor LaFeAsO${}_{0.9}$F${}_{0.1}$ studied by microwave surface impedance
• Neutron powder diffraction study on the iron-based nitride superconductor ThFeAsN
• Synthesis and Microstructural Studies of Iron Oxypnictide LaO1-xFxFeAs Superconductors
• Nodeless superconductivity in the centro- and noncentrosymmetric rhenium-boron superconductors
• Density effect on critical current density and flux pinning properties of polycrystalline SmFeAsO1-xFx superconductor
• Multigap superconductivity in the Mo${}_5$PB${}_2$ boron-phosphorus compound
• Multiple- to single-gap superconductivity crossover in Nb${}_5$Ir${}_{3-x}$Pt${}_x$O alloys
• Direct observation of the influence of the FeAs4 tetrahedron on superconductivity and antiferromagnetic correlations in Sr2VO3FeAs
• Estimation of intraband and interband relative coupling constants from temperature dependences of the order parameter for two-gap superconductors
• Comparative study on the thermoelectric effect of parent oxypnictides La$T$AsO ($T$ = Fe, Ni)
• Electronic Behavior of Superconducting SmFeAsO0.75
• Magnetotransport studies of Superconducting Pr${}_4$Fe${}_2$As${}_2$Te${}_{1-x}$O${}_4$
• Pressure-induced superconductivity reentrant in transition metal dichalcogenide TiSe2
• Nodeless superconductivity in the noncentrosymmetric ThIrSi compound
• Enhancement of superconductivity on the verge of a structural instability in isovalently doped $\beta$-ThRh${}_{1-x}$Ir${}_x$Ge
• Resistivity scaling in 1111 iron-pnictide superconductors
• $c$-axis charge gap and its critical point in the heavily doped Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Superconductivity induced by U-doping in the SmFeAsO system
• Fully-gapped superconducting state in interstitial-carbon-doped Zr5Pt3
• Multiband superconductivity in the topological Kramers nodal-line semimetals
• Discovery of nodal-line superconductivity in chiral crystals
• Study of the itinerant electron magnetism of Fe-based superconductors by the proximity effect
• Spin-dependent conductivity of iron-based superconductors in a magnetic field
• Violation of Kohler rule in Ta2PdTe6 and absence of same in Nb2PdS5- A high field magneto transport study
• Phonon Dispersion Relationship and Oxygen Isotope Effect in Superconductor LaFeAsO
• Thin amorphous molybdenum silicide superconducting shells around individual nanowires deposited via magnetron co-sputtering