LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K

Abstract

The synthesis and properties of LiFeAs, a high-Tc Fe-based superconducting stoichiometric compound, are reported. Single crystal x-ray studies reveal that it crystallizes in the tetragonal PbFCl type (P4/nmm) with a=3.7914(7) A and c=6.364(2) A. Unlike the known isoelectronic undoped intrinsic FeAs compounds, LiFeAs does not show any spin-density wave behavior but exhibits superconductivity at ambient pressures without chemical doping. It exhibits a respectable transition temperature of Tc=18 K with electronlike carriers and a very high critical field, Hc2(0)>80 T. LiFeAs appears to be the chemical equivalent of the infinite layered compound of the high-Tc cuprates.

4 pages, 5 figures

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Cited by in corpus (324)

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• Temperature - pressure phase diagram of the superconducting iron pnictide LiFeP
• The anomaly Cu doping effects on LiFeAs superconductors
• Determination of Superconducting Gap of SmFeAsFxO1-x Superconductors by Andreev Reflection Spectroscopy
• La-substituted CaFeAsH superconductor with Tc = 47 K
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• Critical Slowing Down of Quadrupole and Hexadecapole Orderings in Iron Pnictide Superconductor
• Enhanced high-field transport critical current densities observed for the ex-situ PIT processed Ag/(Ba,K)Fe2As2 thin tapes
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• ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
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• Revisiting the phase diagram of LaFe${}_{1-x}$Co${}_x$AsO on single crystals by thermodynamic methods
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• Tuning the interplay between nematicity and spin fluctuations in Na${}_{1-x}$Li${}_x$FeAs superconductors
• Finite temperature and pressure molecular dynamics for BaFe2As2
• Effect of impurity substitution on band structure and mass renormalization of the correlated FeTe${}_{0.5}$Se${}_{0.5}$ superconductor
• Why MgFeGe is not a superconductor
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• Multiple Superconducting Gaps, Anisotropic Spin Fluctuations and Spin-Orbit Coupling in Iron-Pnictides
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• Theoretical approach to resonant inelastic x-ray scattering in iron-based superconductors at the energy scale of the superconducting gap
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• Contrast of LiFeAs with isostructural, isoelectronic, and non-superconducting MgFeGe
• Nodal versus nodeless superconductivity in iso-electronic LiFeP and LiFeAs
• Enhancement of the upper critical field in codoped iron-arsenic high-temperature superconductors
• Synchrotron X-ray Diffraction Study of Structural Phase Transition in Ca10(Ir4As8)(Fe2-xIrxAs2)
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• Magnetic and electrical properties and carrier doping effects on the Fe-based host compound Sr4Sc2Fe2As2O6
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• Topological Critical Materials of Ternary Compounds
• Defect states in LiFeAs as seen by low temperature scanning tunneling microscopy and spectroscopy
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• Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides
• Exploring multichannel superconductivity in ThFeAsN
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• First-principle study of antimony doping effects on the iron-based superconductor CaFe(Sb${}_x$As${}_{1-x}$)${}_2$
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• In-situ visualization of local distortions in the high-$T_c$ molecule-intercalated $L{i}_x(C_5{H}_{5}N{)}_{y}F{e}_{2-z}S{e}_2$ superconductor
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• Electron-boson spectral density of LiFeAs obtained from optical data
• Hole-$s_{\pm }$ State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides
• Delicate Superconductivity in NaAlGe Single Crystal
• A first principles study on FeAs single layers
• Evidence for bosonic mode coupling in electron dynamics of LiFeAs superconductor
• Breakdown of the Hund's Rule in CuFeAs
• High-pressure self-flux growth and characterization of Li-deficient Li0.95FeAs single crystals
• Hybrid Crystals of Cuprates and Iron-Based Superconductors
• A Unified Theory for the Cuprates, Iron-Based and Similar Superconducting Systems: Application for Spin and Charge Excitations in the Hole-Doped Cuprates
• Impact of atomic defects in the electronic states of FeSe${}_{1-x}$S${}_x$ superconducting crystals
• Study of the rare earth effects on the magnetic fluctuations in RbLn${}_2$Fe${}_4$As${}_4$O${}_2$ (Ln = Tb, Dy and Ho) by Mössbauer spectroscopy
• Persistent antiferromagnetic order in heavily overdoped Ca${}_{1-x}$La${}_x$FeAs${}_2$
• 75As NMR local probe study of magnetism in (Eu1-xKx)Fe2As2
• Multiple superconducting gap and anisotropic spin fluctuations in iron arsenides: Comparison with nickel analog
• Superconductivity in the Iron-Pnictide Parent Compound SrFe2As2
• A Short Review of the $S_4$ Symmetric Microscopic Model for Iron-Based High Temperature Superconductors
• The calcium doping effects on the structural and electrical properties of NdFeAsO0.8F0.2
• Discovery of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2
• Effect of antimony substitution in iron pnictide compounds
• Isovalent substitution effects of arsenic on structural and electrical properties of iron-based superconductor NdFeAsO0.8F0.2
• Superconductivity above 30 K due to the introduction of oxygen in CaFeAsF
• Topological Semimetal KAlGe with Novel Electronic Instability
• Real-space visualization of quasiparticle dephasing near the Planckian limit in the Dirac line node material ZrSiS