Intrinsic Properties of Stoichiometric LaOFeP

Abstract

DC and ac magnetization, resistivity, specific heat, and neutron diffraction data reveal that stoichiometric LaOFeP is metallic and non-superconducting above T = 0.35 K, with gamma = 12.5 mJ/mol*K. Neutron diffraction data at room temperature and T = 10 K are well described by the stoichiometric, tetragonal ZrCuSiAs structure and show no signs of structural distortions or long range magnetic ordering, to an estimated detectability limit of 0.07 uB/Fe. We propose a model, based on the shape of the iron-pnictide tetrahedron, that explains the differences between LaOFeP and LaOFeAs, the parent compound of the recently discovered high-Tc oxyarsenides, which, in contrast, shows both structural and spin density wave (SDW) transitions.

Submitted to PRB Rapid Comm

References in corpus (30)

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• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO${}_{1-x}$F${}_x$FeAs
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• Very High Field Two-Band Superconductivity in LaFeAsO_0.89F_0.11
• Correlated electronic structure of LaOFeAs
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• The BCS-like gap in superconductor SmFeAsO_0.85F_0.15
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• Crystallographic Phase Transition and High-Tc Superconductivity in LaFeAsO:F
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• Hall effect and magnetoresistance in the normal state of the superconductor LaO${}_{0.9}$F${}_{0.1-x}$FeAs
• Superconducting properties of Fe-based layered superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Superconductivity at 36 K in Gadolinium-arsenide Oxides GdO${}_{1-x}$F${}_x$FeAs
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• Point-Contact Spectroscopy of Iron-Based Layered Superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations
• Strong-coupling superconductivity in layered nickel-based LaO${}_{1-x}$F${}_x$NiAs
• Specific heat of the iron-based high-$T_c$ superconductor SmO${}_{1-x}$F${}_x$FeAs
• Electromagnetic properties and electronic structure of iron-based layered superconductor LaOFeP
• Neutron scattering study of the oxypnictide superconductor La(O,F)FeAs
• Nernst effect of the new iron-based superconductor LaO${}_{1-x}$F${}_x$FeAs
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• Electron energy-loss spectroscopy and ab initio electronic structure of the LaOFeP superconductor
• Linear Temperature Dependence of the Lower Critical Field $H_{c1}$ in F-Doped LaOFeAs Superconductors
• Element substitution effect in transition metal oxypnictide Re(O${}_{1-x}$F${}_x$)TAs (Re=rare earth, T=transition metal)
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• Fermi surface of superconducting LaFePO determined by quantum oscillations
• Iron pnictides as a new setting for quantum criticality
• Superconductivity induced by La doping in Sr1-xLaxFBiS2 system
• Structure and Magnetic Order in the NdFeAs(O,F) Superconductor System
• (Sr_3Sc_2O_5)Fe_2As_2 as a possible parent compound for FeAs-based superconductors
• Crystal structure and phase transitions across the metal-superconductor boundary in the SmFeAsO1-xFx (0 < x < 0.20) family
• Influence of the rare-earth element on the effects of the structural and magnetic phase transitions in CeFeAsO, PrFeAsO, and NdFeAsO
• CeFePO: A Heavy Fermion Metal with Ferromagnetic Correlations
• Atomic and electronic structures of FeSe monolayer and bilayer thin films on SrTiO${}_3$ (001): a first-principles study
• New iron-based arsenide oxides (Fe2As2)(Sr4M2O6)(M = Sc, Cr)
• MuSR studies of RE(O,F)FeAs (RE = La, Nd, Ce) and LaOFeP systems: possible incommensurate/stripe magnetism and superfluid density
• The Delicate Electronic and Magnetic Structure of the LaOFePn System (Pn = pnictogen)
• Ferromagnetic spin fluctuation in LaFeAsO1-xFx
• Tight binding model for iron pnictides
• Electronic structure of oxygen-free 38K superconductor Ba1-xKxFe2As2 in comparison with BaFe2As2 from first principles
• Heat capacity measurements on FeAs-based compounds: a thermodynamic probe of electronic and magnetic states
• Superconductivity in LnFePO (Ln = La, Pr, and Nd) single crystals
• Itinerant Nature of Magnetism in Iron Pnictides: A first principles study
• Extended Drude model and role of interband transitions in the mid-infrared spectra of pnictides
• Specific Heat Discontinuity, deltaC, at Tc in BaFe2(As0.7P0.3)2 - Consistent with Unconventional Superconductivity
• Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides
• Effect of the tetrahedral distortion on the electronic properties of iron-pnictides
• Quantum Oscillation Studies of the Fermi Surface of LaFePO
• Electronic structure of new quaternary superconductors LaONiBi and LaOCuBi from first principles
• Quantum oscillations of the superconductor LaRu${}_2$P${}_2$ : comparable mass enhancement $\lambda \approx 1$ in Ru and Fe phosphides
• Stoichiometry, Spin Fluctuations, and Superconductivity in LaNiPO
• Possible Superconductivity in Fe-Sb Based Materials: Density Functional Study of LiFeSb
• Upper critical field, critical current density and thermally activated flux flow in CaFFe0.9Co0.1As superconductor
• Paramagnetic Phase of a Heavy-Fermion Compound, CeFePO, Probed by 57Fe Mössbauer Spectroscopy
• High-energy spin fluctuation in low-$T_{\mathrm{c}}$ iron-based superconductor LaFePO${}_{0.9}$