ARPES studies of the electronic structure of LaOFe(P,As)

Abstract

We report a comparison study of LaOFeP and LaOFeAs, two parent compounds of recently discovered iron-pnictide superconductors, using angle-resolved photoemission spectroscopy. Both systems exhibit some common features that are very different from well-studied cuprates. In addition, important differences have also been observed between these two ferrooxypnictides. For LaOFeP, quantitative agreement can be found between our photoemission data and the LDA band structure calculations, suggesting that a weak coupling approach based on an itinerant ground state may be more appropriate for understanding this new superconducting compound. In contrast, the agreement between LDA calculations and experiments in LaOFeAs is relatively poor, as highlighted by the unexpected Fermi surface topology around (pi,pi). Further investigations are required for a comprehensive understanding of the electronic structure of LaOFeAs and related compounds.

arXiv comment16 pages, 4 figures, for the special issue of Physica C on superconducting pnictides

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Cited by in corpus (47)

• Dynamical Mean-Field Theory within an Augmented Plane-Wave Framework: Assessing Electronic Correlations in the Iron Pnictide LaFeAsO
• Functional Renormalization Group for multi-orbital Fermi Surface Instabilities
• Spectroscopic scanning tunneling microscopy insights into Fe-based superconductors
• Phase diagram and Gap anisotropy in Iron-Pnictide Superconductors
• Space group symmetry, spin-orbit coupling and the low energy effective Hamiltonian for iron based superconductors
• Superconductivity and spin-density-waves in multi-band metals
• On the multi-orbital band structure and itinerant magnetism of iron-based superconductors
• Electronic structure reconstruction: the driving force behind the magnetic and structural transitions in NaFeAs
• Spin excitations in the excitonic spin-density-wave state of the iron pnictides
• $S_4$ Symmetric Microscopic Model for Iron-Based Superconductors
• Quantum Monte Carlo Study of Pairing Symmetry and Correlation in Iron-based Superconductors
• Is Fermi-surface nesting the origin of superconductivity in iron pnictides?: A fluctuation-exchange-approximation study
• Doping dependence of spin fluctuations and electron correlations in iron pnictides
• Surface and bulk electronic structures of LaOFeAs studied by angle resolved photoemission spectroscopy
• Interaction-induced singular Fermi surface in a high-temperature oxypnictide superconductor
• Surface-driven electronic structure in LaFeAsO studied by angle resolved photoemission spectroscopy
• Spectral properties of transition metal pnictides and chalcogenides: angle-resolved photoemission spectroscopy and dynamical mean field theory
• Linear-Temperature Dependence of Static Magnetic Susceptibility in LaFeAsO from Dynamical Mean-Field Theory
• Evolution of the Phase Diagram of LaFeP${}_{1-x}$As${}_x$O${}_{1-y}$F${}_y$ ($y$ = 0 -- 0.1)
• Quasiparticle interference of C2-symmetric surface states in LaOFeAs parent compound
• High-temperature superconductivity from fine-tuning of Fermi-surface singularities in iron oxypnictides
• Vortex states in mesoscopic three-band superconductors
• Effects of Fermi-surface shrinking on the optical sum rule in pnictides
• Unusual Electronic Structure and Observation of Dispersion Kink in CeFeAsO Parent Compound of FeAs-Based Superconductors
• LDA+DMFT Spectral Functions and Effective Electron Mass Enhancement in Superconductor LaFePO
• Angle-resolved photoemission spectroscopy study of PrFeAsO_{0.7}: Dependence of the electronic structure on the pnictogen height
• Calculated Cleavage Behavior and Surface States of LaOFeAs
• Two Fermi surface states and two $T_{\mathrm{c}}$-rising mechanisms revealed by transport properties in $R$FeP${}_{1-x}$As${}_x$O${}_{0.9}$F${}_{0.1}$ ($R$=La, Pr and Nd)
• Microscopic origin of the linear temperature increase of the magnetic susceptibility of BaFe${}_2$As${}_2$
• Role of Degeneracy, Hybridization, and Nesting in the Properties of Multi-Orbital Systems
• Topological Surface States in Paramagnetic and Antiferromagnetic Iron Pnictides
• Structural and superconducting properties in LaFeAs1-xSbxO1-yFy
• Ground state pairing correlations in the $S_4$ symmetric microscopic model for iron-based superconductors
• Evidence of a full gap in LaFeAsO${}_{1-x}$F${}_x$ thin films from infrared spectroscopy
• Brief review on iron-based superconductors: are there clues for unconventional superconductivity?
• Electronic dispersion anomalies in the iron pnictide superconductor Ba_{1-x}K_xFe_2As_2
• Disentangling the surface and bulk electronic structures of LaOFeAs
• Proposal to determine the Fermi-surface topology of a doped iron-based superconductor using bulk-sensitive Fourier-transform Compton scattering
• The effect of spin fluctuations on the electronic structure in iron based superconductors
• Drude weight anisotropy in the doped iron pnictides: the primary role of orbital weight redistribution along the reconstructed Fermi surfaces
• Strong surface termination dependence of the electronic structure of polar superconductor LaFeAsO revealed by nano-ARPES
• First-principles-based $\pm s$-wave modelling for iron-based superconductors:Studies for specific heat and nuclear magnetic relaxation rate
• Change of Fermi surface states related with two different $T_{\mathrm{c}}$-raising mechanisms in iron pnictide superconductor
• Fluctuating magnetism of Co- and Cu-doped NaFeAs
• Josephson-frustrated superconductors in a magnetic field
• Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides
• Experimentally Realized Correlated Electron Materials: From Superconductors to Topological Insulators