Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$

Abstract

Since the discovery of high-transition temperature ($T_c$) superconductivity in layered copper oxides, extensive efforts have been devoted to explore the higher $T_c$ superconductivity. However, the $T_c$ higher than 40 K can be obtained only in the copper oxide superconductors so far. The highest reported value of $T_c$ for non-copper-oxide bulk superconductivity is 39 K in $Mg{B}_2$.\cite{jun} The $T_c$ of about 40 K is close to or above the theoretical value predicted from BCS theory.\cite{mcmillan} Therefore, it is very significant to search for non-copper oxide superconductor with the transition temperature higher than 40 K to understand the mechanism of high-$T_c$ superconductivity. Here we report the discovery of bulk superconductivity in samarium-arsenide oxides $SmFeAs{O}_{1-x}{F}_x$ with ZrCuAiAs type structure. Resistivity and magnetization measurements show strong evidences for transition temperature as high as 43 K. $SmFeAs{O}_{1-x}{F}_x$ is the first non-copper oxide superconductor with $T_c$ higher than 40 K. The $T_c$ higher than 40 K may be a strong argument to consider $SmFeAs{O}_{1-x}{F}_x$ as an unconventional superconductor.

8 pages, 4 figures

Cited by in corpus (270)

• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Superconductivity at 22 K in Co-doped BaFe2As2 Crystals
• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• The superconductivity at 18 K in LiFeAs system
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Superconductivity up to 37 K in (A1-xSrx)Fe2As2 with A=K and Cs
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Superconductivity at 27 K in tetragonal FeSe under high pressure
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report
• Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82
• Thorium-doping induced superconductivity up to 56 K in Gd1-xThxFeAsO
• Incommensurate magnetic order in the alpha-Fe(Te,Se) superconductor systems
• First-order magnetic and structural phase transitions in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$
• Nearly Isotropic superconductivity in (Ba,K)Fe2As2
• The Structural Phase Transition in FeSe (Fe1+dSe)
• Funtional Renormalization Group Study of the Pairing Symmetry and Pairing Mechanism of the FeAs Based High Temperature Superconductors
• The electronic phase diagram of the LaO1-xFxFeAs superconductor
• Anisotropic thermodynamic and transport properties of single crystalline (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (x = 0 and 0.45)
• Pairing Symmetry in a Two-Orbital Exchange Coupling Model of Oxypnictides
• Substitution Effects on FeSe Superconductor
• Pressure-induced volume-collapsed tetragonal phase of CaFe2As2 as seen via neutron scattering
• Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Superconductivity in Co-doped LaFeAsO
• Superconductivity up to 30 K in the vicinity of quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Lattice and magnetic instabilities in CaFe2As2: A single crystal neutron diffraction study
• Crystal structure of the new FeSe1-x superconductor
• The BCS-like gap in superconductor SmFeAsO_0.85F_0.15
• Electronic structure of the iron-based superconductor LaOFeP
• Multiband magnetism and superconductivity in Fe-based compounds
• Phase transitions in LaFeAsO: structural, magnetic, elastic, and transport properties, heat capacity and Mossbauer spectra
• Structure and superconductivity of LiFeAs
• Theory of magnetic excitations in iron-based layered superconductors
• First order structural phase transition in CaFe${}_2$As${}_2$
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Superconductivity induced by Ni doping in BaFe${}_2$As${}_2$
• Origin of the spin density wave instability in AFe${}_2$As${}_2$ (A=Ba, Sr) as revealed by optical spectroscopy
• The Unprecedented Giant Coupling of Fe-spin State and the As-As Hybridization in Iron-Pnictide
• Nodal Spin Density Wave and band topology of the FeAs based materials
• Superconductivity induced by phosphorus doping and its coexistence with ferromagnetism in EuFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron-Pnictide Superconductor BaFe${}_{1.8}$Co${}_{0.2}$As${}_2$
• Anisotropy in the electrical resistivity and susceptibility of superconducting BaFe${}_2$As${}_2$ single crystals
• Crystallographic Phase Transition and High-Tc Superconductivity in LaFeAsO:F
• Antiferromagnetic superexchange interactions in LaOFeAs
• Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2
• High - Temperature Superconductivity in Iron Based Layered Compounds
• Microwave Penetration Depth and Quasiparticle Conductivity in PrFeAsO_1-y Single Crystals : Evidence for a Full-Gap Superconductor
• Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
• Structure, antiferromagnetism and superconductivity of the layered iron arsenide NaFeAs
• Spin-singlet superconductivity with multiple gaps in PrO0.89F0.11FeAs
• Magnetic and structural transitions in layered FeAs systems: AFe2As2 versus RFeAsO compounds
• Spin-triplet p-wave pairing in a 3-orbital model for iron pnictide superconductors
• Spin and Lattice Structure of Single Crystal SrFe2As2
• High-Temperature Superconductivity in Eu0.5K0.5Fe2As2
• Antiferromagnetic transition in EuFe${}_2$As${}_2$: A possible parent compound for superconductors
• Fermi surface topology and low-lying quasiparticle dynamics of parent Fe${}_{1+x}$Te/Se Superconductor by orbital-polarization resolved ARPES
• (pi,pi)-electronic order in iron arsenide superconductors
• Superconductivity induced by cobalt doping in iron-based oxyarsenides
• Effect of Co doping on superconductivity and transport properties in SmFe${}_{1-x}$Co${}_x$AsO
• Multiple Nodeless Superconducting Gaps in (Ba0.6K0.4)Fe2As2 Superconductor from Angle-Resolved Photoemission Spectroscopy
• Iron pnictides as a new setting for quantum criticality
• Probing superconducting energy gap from infrared spectroscopy on a Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ single crystal with T${}_c$=37 K
• A neutron scattering study of the interplay between structure and magnetism in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Different resistivity response to spin density wave and superconductivity at 20 K in $C{a}_{1-x}N{a}_{x}F{e}_{2}A{s}_2$
• The Absence of Superconductivity in Single Phase CaFe2As2 under Hydrostatic Pressure
• Upper critical field, Hall effect and magnetoresistance in the iron-based layered superconductor LaFeAsO_{0.9}F_{0.1-δ}
• Hall effect and magnetoresistance in the normal state of the superconductor LaO${}_{0.9}$F${}_{0.1-x}$FeAs
• Critical Fields and Anisotropy of NdO0.82F0.18FeAs Single Crystals
• Density Functional Study of Excess Fe in Fe${}_{1+x}$Te: Magnetism and Doping
• Pairing State with a time-reversal symmetry breaking in FeAs based superconductors
• Possible re-entrant superconductivity in EuFe2As2 under pressure
• Low energy spin waves and magnetic interactions in SrFe${}_2$As${}_2$
• Transport and anisotropy in single-crystalline SrFe${}_2$As${}_2$ and $A_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ ($A$ = Sr, Ba) superconductors
• Synthesis and Properties of CaFe${}_2$As${}_2$ Single Crystals
• Electrical Resistivity and Specific Heat of EuFe2As2 Single Crystals: Magnetic homologue of SrFe2As2
• Pressure-induced superconductivity in single crystal CaFe2As2
• Spin susceptibility, phase diagram, and quantum criticality in the electron-doped high Tc Superconductor Ba[Fe(1-x)Co(x)]2As2
• Spin Fluctuations, Interband Coupling, and Unconventional Pairing in Iron-based Superconductors
• Superfluid density of the $\pm$s-wave state for the iron-based superconductors
• Structure and Magnetic Order in the NdFeAs(O,F) Superconductor System
• Strong coupling between magnetic and structural order parameters in SrFe2As2
• Momentum-dependence of Superconducting Gap, strong-coupling dispersion Kink, and tightly bound Cooper pairs in the high-Tc (Sr,Ba)1-x(K,Na)xFe2As2 superconductors
• Lattice and Magnetic structures of PrFeAsO, PrFeAsO0.85F0.15 and PrFeAsO0.85
• First Order Phase Transition and Superconductivity in BaNi2As2 Single Crystals
• Single crystal of superconducting SmFeAsO1-xFy grown at high pressure
• Superconductivity coexisting with phase-separated static magnetic order in (Ba,K)Fe${}_2$As${}_2$, (Sr,Na)Fe${}_2$As${}_2$ and CaFe${}_2$As${}_2$
• Interplay of Rare Earth and Iron magnetism in RFeAsO with R = La, Ce, Pr, and Sm: A muon spin relaxation study and symmetry analysis
• Magnetic Order of the Iron Spins in NdOFeAs
• Upper critical fields well above 100 T for the superconductor SmFeAsO${}_{0.85}$F${}_{0.15}$ with T${}_c$ = 46 K
• Even Parity, Orbital Singlet and Spin Triplet Pairing for Superconducting $La(O_{1-x}{F}_x)FeAs$
• Growth and characterization of A_{1-x}K_xFe_2As_2 (A = Ba, Sr) single crystals with x=0 - 0.4
• Metamagnetic transition in EuFe${}_2$As${}_2$ single crystals
• Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO${}_{1-x}$F${}_x$ measured by muon spin rotation
• Anisotropy, Itineracy, and Magnetic Frustration in High-Tc Iron Pnictides
• Evidence for two distinct scales of current flow in polycrystalline Sm and Nd iron oxypnictides
• Crystal structure and phase transitions across the metal-superconductor boundary in the SmFeAsO1-xFx (0 < x < 0.20) family
• Evidence for Two Gaps and Breakdown of the Uemura Plot in Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ Single Crystals
• Properties of a two orbital model for oxypnictide superconductors: Magnetic order, B_2g spin-singlet pairing channel, and its nodal structure
• Intrinsic Properties of Stoichiometric LaOFeP
• High temperature superconductivity (Tc onset at 34K) in the high pressure orthorhombic phase of FeSe
• Neutron diffraction on antiferromagnetic ordering in single-crystal BaFe2As2
• Suppression of superconductivity in FeSe films under tensile strain
• Valley density-wave and multiband superconductivity in Fe-pnictides
• Doping evoluton of antiferromagnetic order and structural distortion in LaFeAsO${}_{1-x}$F${}_x$
• High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy
• Superconductivity in Epitaxial Thin Films of Co-Doped SrFe2As2 with Bilayered FeAs Structures and their Magnetic Anisotropy
• Experimental Consequences of the S-wave $\cos (k_x)\cdot \cos (k_y)$ Superconductivity in the Iron-Pnictides
• CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations
• Possible pairing states of the Fe-based superconductors
• Superconductivity in LaFeAs${}_{1-x}$P${}_x$O: effect of chemical pressures and bond covalency
• Kondo resonance narrowing in d- and f-electron systems
• 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
• 75As NMR Study of Hole-Doped Superconductor Ba1-xKxFe2As2 (Tc = 38K)
• Heteroepitaxial growth and optoelectronic properties of layered iron oxyarsenide, LaFeAsO
• Muon spin relaxation studies of magnetic order and superfluid density in antiferromagnetic NdOFeAs, BaFe2As2 and superconducting (Ba,K)Fe2As2
• Growth and Superconductivity of FeSex Crystals
• Superconductivity above 50K in LnFeAsO1-y (Ln= Nd, Sm, Gd, Tb and Dy) Synthesized by High-pressure Technique
• Effects of the magnetic orderings on the dynamical conductivity: optical investigations of EuFe${}_2$As${}_2$ single crystals
• Evidence for Unconventional Superconductivity in Arsenic-Free Iron-Based Superconductor FeSe : A ^77Se-NMR Study
• SrFeAsF as a parent compound for iron pnictide superconductors
• Pressure-Induced Effects on the Structure of the FeSe Superconductor
• Preparation and superconductivity of iron selenide thin films
• Raman scattering study of (K${}_x$Sr${}_{1-x}$)Fe${}_2$As${}_2$ ($x$ = 0.0, 0.4)
• Narrow superconducting window in Ni-doped LaFeAsO
• Feshbach resonances and mesoscopic phase separation near a quantum critical point in multiband FeAs-based superconductors
• Theory for Superconductivity in Iron Pnictides at Large Coulomb U Limit
• Anisotropic magnetic and superconducting properties of pure and Co-doped CaFe${}_2$As${}_2$ single crystals
• Effect of pressure on the structural phase transition and superconductivity in (B$_{1-x}K_x)Fe_2As_2 (x = 0 and 0.45) and SrFe_2As_2 single crystals
• Nuclear magnetic relaxation and superfluid density in Fe-pnictide superconductors: An anisotropic \pm s-wave scenario
• Epitaxial growth and anisotropy of La(O,F)FeAs thin films deposited by Pulsed Laser Deposition
• Observation of an Orbital Selective Electron-Mode Coupling in Fe-Based High-$T_c$ Superconductors
• FeTe as a candidate material for new iron-based superconductor
• Spin Fluctuation Dynamics and Multiband Superconductivity in Iron Pnictides
• 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
• Water-induced superconductivity in SrFe2As2
• Normal State Correlated Electronic Structure of Iron Pnictides
• Two superconducting gaps in LaFeAsO0.92F0.08 revealed by 75As nuclear quadrupole resonance
• Electromagnetic properties and electronic structure of iron-based layered superconductor LaOFeP
• Cobalt-substitution-induced Superconductivity in a New Compound with ZrCuSiAs-type Structure, SrFeAsF
• ARPES studies of the electronic structure of LaOFe(P,As)
• Superconductivity above 50 K in Tb${}_{1-x}$Th${}_x$FeAsO
• Atomically-flat, chemically-stable, superconducting epitaxial thin film of iron-based superconductor, cobalt-doped BaFe${}_2$As${}_2$
• Pressure-induced superconductivity in Iron pnictide compound SrFe2As2
• MuSR studies of RE(O,F)FeAs (RE = La, Nd, Ce) and LaOFeP systems: possible incommensurate/stripe magnetism and superfluid density
• Phonon Density of States of LaFeAsO1-xFx
• Presure-Induced Superconducting State of Antiferromagnetic CaFe${}_2$As${}_2$
• Impurity Effects in Sign Reversing Fully-Gapped Superconductors: Analysis of FeAs Superconductors
• Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
• Superconductivity in single crystals of LaFePO
• Lower Critical Fields of Superconducting PrFeAsO${}_{1-y}$ Single Crystals
• Short-range incommensurate magnetic order near the superconducting phase boundary in Fe(1+d)Te(1-x)Se(x)
• Magnetic Excitations in the High Tc Iron Pnictides
• Columnar magnetic structure coupled with orthorhombic distortion in the antiferromagnetic iron arsenide SrFe${}_2$As${}_2$
• Lattice and electronic anomalies of CaFe_2As_2 studied by Raman spectroscopy
• Crystal growth and superconductivity of FeSe_x
• Coexistence of two order parameters and a pseudogaplike feature in the iron-based superconductor LaFeAsO_(1-x)F_x
• Magnetic order in CaFe1-xCoxAsF (x = 0, 0.06, 0.12) superconductor compounds
• On the electronic structure of electron doped LaOFeAs as seen by X-ray absorption spectroscopy
• First order magnetic transition in single crystal CaFe${}_2$As${}_2$ detected by ${}^{75}$As NMR
• Anisotropy of superconducting single crystal SmFeAsO_(0.8)F_(0.2) studied by torque magnetometry
• Correlated pressure effects on structure and superconductivity in LaFeAsO0.9F0.1
• Point-contact Andreev-reflection spectroscopy in ReFeAsO_{1-x}F_x (Re = La, Sm): Possible evidence for two nodeless gaps
• Fermi Surface and Band Renormalization in (Sr,K)Fe${}_2$As${}_2$ Superconductor from Angle-Resolved Photoemission Spectroscopy
• Effect of pressure on the magnetostructural transition in SrFe2As2
• Neutron scattering study of the oxypnictide superconductor La(O,F)FeAs
• Successive phase transitions under high pressure in FeTe0.92
• Evidence for two distinct anisotropies in the oxypnictide superconductors SmFeAsO_(0.8)F_(0.2) and NdFeAsO_(0.8)F_(0.2)
• Effect of 3d Transition Metal Doping on the Superconductivity in Quaternary Fluoroarsenide CaFeAsF
• The crystalline electric field as a probe for long range antiferromagnetic order and superconductivity in CeFeAsO${}_{1-x}$F${}_x$
• Superconducting energy gap and c-axis plasma frequency of (Nd,Sm)O0.82F0.18FeAs superconductors from infrared ellipsometry
• Evidence of quantum criticality in the phase diagram of K${}_x$Sr${}_{1-x}$Fe${}_2$As${}_2$ from measurements of transport and thermoelectricity
• Epitaxial Growth of NdFeAsO Thin Films by Molecular Beam Epitaxy
• Suppression of spin-density-wave transition and emergence of ferromagnetic ordering of Eu${}^{2+}$ moments in EuFe${}_{2-x}$Ni${}_x$As${}_2$
• Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors
• Pressure shift of the superconducting T_c of LiFeAs
• Vortex studies in superconducting Ba(Fe0.93Co0.07)2As2
• Large Seebeck coefficients in Iron-oxypnictides : a new route towards n-type thermoelectric materials
• Impurity-induced in-gap state and Tc in sign-reversing s-wave superconductors: analysis of iron oxypnictide superconductors
• Rare earth magnetism in CeFeAsO: A single crystal study
• On interband pairing in multiorbital systems
• Thermal properties of SmFeAs(O1-xFx) as probe of the interplay between electrons and phonons
• Band renormalization and Fermi surface reconstruction in iron-based superconductors
• X-ray spectra and electronic structure of FeAs superconductors
• Electronic structure of oxygen-free 38K superconductor Ba1-xKxFe2As2 in comparison with BaFe2As2 from first principles
• Pressure-induced shift of T${}_c$ in K${}_x$Sr${}_{1-x}$Fe${}_2$As${}_2$ (x=0.2, 0.4, 0.7): Analogy to the high-T${}_c$ cuprate superconductors
• Enhancement of Superfluid Stiffness, Suppression of Superconducting T_c and Field-induced Magnetism in the Pnictide Superconductor LiFeAs
• Pairing symmetry and properties of iron-based high temperature superconductors
• Low-temperature lattice anomaly in LaFeAsO0.93F0.07 probed by x-ray absorption spectroscopy: Evidence for strong electron-lattice interaction
• Neutron scattering investigation of the magnetic order in single crystalline BaFe2As2
• $\pi$-junction to probe antiphase s-wave pairing in iron pnictide superconductors
• Enhanced Orbital Degeneracy in Momentum Space for LaOFeAs
• Insular superconductivity in Co-doped iron pnictide CaFe${}_{1-x}$Co${}_x$AsF
• Heat capacity measurements on FeAs-based compounds: a thermodynamic probe of electronic and magnetic states
• Superconductivity at 41.0 K in the F-doped LaFeAsO1-xFx
• Suppression of the structural phase transition and lattice softening in slightly underdoped Ba(1-x)K(x)Fe2As2 with electronic phase separation
• Thermodynamic properties of Ba1-xMxFe2As2 (M = La and K)
• Interplay between superconductivity and magnetism in K-doped EuFe2As2
• Superconductivity in LnFePO (Ln = La, Pr, and Nd) single crystals
• Synthesis, structural and transport properties of the hole-doped Superconductor Pr_{1-x}Sr_xFeAsO
• Effect of Zn doping on magnetic order and superconductivity in LaFeAsO
• Full Gap Superconductivity in Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ Probed by Muon Spin Rotation
• Comparison of crystal structures and effects of Co substitution in a new member of Fe-1111 superconductor family AeFeAsF(Ae = Ca and Sr): a possible candidate for higher Tc superconductor
• Orbital fluctuation mechanism for superconductivity in iron-based compounds
• Electronic and lattice dynamical properties of the iron-based superconductors LiFeAs and NaFeAs
• Theory of Andreev reflection in junctions with iron-based High-$T_c$ superconductors
• Superconductivity at 11.3 K induced by cobalt doping in CeOFeAs
• Microscopic study of the effect of impurities on the first order spin density wave transition in BaFe${}_2$As${}_2$
• Elastic properties and chemical bonding in ternary arsenide SrFe2As2 and quaternary oxyarsenide LaFeAsO - basic phases for new 38-55K superconductors
• The superconductor KxSr(1-x)Fe2As2: Normal state and superconducting properties
• Energy-scale phenomenology and pairing via resonant spin-charge motion in FeAs, CuO, heavy-fermion and other exotic superconductors
• High-Tc Superconductivity in some Heavy Rare-earth Iron-arsenide REFeAsO1-delta(RE = Ho, Y, Dy and Tb) Compounds
• Symmetry of superconducting states with two orbitals on a tetragonal lattice: application to $La{O}_{1-x}{F}_{x}FeAs$
• Superconductivity induced by oxygen deficiency in Sr-doped LaOFeAs
• Perturbation Theory of High-Tc Superconductivity in Iron Pnictides
• The optical phonon spectrum of SmFeAsO
• Coexistence of Supercondcutivity and Magnetism in LaFeAs(O0.94F0.06) Probed by Muon Spin Relaxation
• Effective Hamiltonian for FeAs based superconductors
• Resistivity saturation in PrFeAsO${}_{1-x}$F${}_y$ superconductor: An evidence of strong electron-phonon coupling
• Doping evolution of itinerant magnetic excitations in Fe-based oxypnictides
• Superconductivity in CeO_{1-x}F_xFeAs with upper critical field of 94 T
• Magnetic impurities in the two-band $s_{\pm }$-wave superconductors
• Competition/Coexisitence of Magnetism and Superconductivity in Iron Pnictides Probed by Muon Spin Rotation
• Upper critical field, superconducting energy gaps, and Seebeck coefficient in La0.8Th0.2OFeAs
• Fermi surface of Ba{1-x}KxFe2As2 as probed by angle-resolved photoemission
• Vortex state in iron-based superconductors with collinear antiferromagnetic cores
• 75As NMR study of the ternary iron arsenide BaFe2As2
• Magnetic and lattice coupling in single-crystal SrFe${}_2$As${}_2$: A neutron scattering study
• Enhancement in superconducting transition temperature and upper critical field of LaO0.8F0.2FeAs with antimony doping
• 75As-NMR studies on La FeAsO1-xFx (x=0.14) under a pressure of 3GPa
• Angular Dependence of X-ray Absorption Spectrum for Field-aligned Fe-based Superconductors
• Penetration depth, lower critical fields, and quasiparticle conductivity in Fe-arsenide superconductors
• Electronic structure of new quaternary superconductors LaONiBi and LaOCuBi from first principles
• Isotope effect and the role of phonon in the Fe-based superconductors
• Doping-insensitive density-of-states suppression in polycrystalline iron-based superconductor SmO${}_{1-x}$F${}_x$FeAs
• Orbital Degeneracy and the Microscopic Model of the FeAs Plane in the Iron-Based Superconductors
• Electronic Structure of New AFFeAs Prototype of Iron Arsenide Superconductors
• Evidence for Local Moment by Electron Spin Resonance Study on Polycrystalline LaFeAsO${}_{1-x}$F${}_x$ (x=0 and 0.13)
• Hall coefficient and Hc2 in underdoped LaFeAsO0.95F0.05
• Synthesis and Microstructural Studies of Iron Oxypnictide LaO1-xFxFeAs Superconductors
• Band structure of SrFeAsF and CaFeAsF as parent phases for a new group of oxygen-free FeAs superconductors
• Theoretical investigation of magnetic order in ReOFeAs, Re = Ce, Pr
• Mechanism of phase transitions and the electronic density of states in (La,Sm)FeAsO${}_{1-x}$F${}_x$ from ab initio calculations
• Hidden SDW order and effective low-energy theory for FeAs superconductors
• Determination of characteristic muon precession and relaxation signals in FeAs and FeAs2, possible impurity phases in pnictide superconductors
• Striped antiferromagnetism and electronic structures of SrFeAsF and their implications
• Distorted magnetic orders and electronic structures of tetragonal FeSe from first-principles
• Anisotropic superconducting properties of aligned Sm${}_{0.95}$La${}_{0.05}$FeAsO${}_{0.85}$F${}_{0.15}$ microcrystalline powder
• Is the nature of magnetic order in copper-oxides and in iron-pnictides different?
• Unscreening Effect on Fe-Pnictide Superconductor
• Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by muSR
• Flux-lattice melting in LaO${}_{1-x}$F${}_x$FeAs: first-principles prediction
• Predictions of highest Transition-temperature for electron-phonon superconductors
• Structural properties, defects and structural phase transition in the ROFeM (R=La, Nd; M=As, P) materials
• Impurity states in antiferromagnetic Iron Arsenides
• Pressure Effects on the Superconducting and Spin-Density-Wave States of the Newly Discovered Sm(O1-xFx)FeAs
• New enlargement of the novel class of superconductors
• A predictive bond order model connects covalent superconductivity, including cuprates, oxypnictides or HfN based materials
• Elastic theory for the vortex-lattice melting in iron-based high-Tc superconductors
• A first principles study on FeAs single layers
• Effective magnetic penetration depth in superconducting cylinders and spheres with highly anisotropic electrodynamics
• Very high critical field and superior Jc-field performance in NdO0.82F0.18FeAs with Tc of 51 K
• Multiband effects on the conductivity for a multiband Hubbard model
• One-step atmospheric pressure synthesis of the ground state of Fe based LaFeAsO1-d superconductor
• Flux pinning mechanism in NdFeAsO0.82F0.18 superconductor: Thermally activated flux flow and charge carrier mean free path fluctuation pinning
• Cu, Pu and Fe high Tc superconductors: all the same mechanism!
• Structural, magnetic and electronic properties of quaternary oxybismuthides LaOMBi (where M = Sc, Ti ... Ni, Cu) - possible parent phases for new superconducting materials
• Theory of superconducting and nonsuperconducting stripe phases in the hole-doped superconductor Ca{2-x}Na{x}CuO{2}Cl{2} (x=1/8,1/16)