On the Spatial Locality of Electronic Correlations in LiFeAs

Abstract

We address the question of the degree of spatial non-locality of the self energy in the iron-based superconductors, a subject which is receiving considerable attention. Using LiFeAs as a prototypical example, we extract the self energy from angular-resolved photoemission spectroscopy (ARPES) data. We use two distinct electronic structure references: density functional theory in the local density approximation and linearized quasiparticle self consistent GW (LQSGW). We find that with the LQSGW reference, spatially local dynamical correlations provide a consistent description of the experimental data, and account for some surprising aspects of the data such as the substantial out of plan dispersion of the electron Fermi surface having dominant xz/yz character. Hence, correlations effects can be separated into static non-local contributions well described by LQSGW and dynamical local contributions. Hall effect and resistivity data are shown to be consistent with this description.

arXiv comment21 pages, 14 figures

References in corpus (49)

• Maximally-localized generalized Wannier functions for composite energy bands
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x
• Maximally-localized Wannier functions for entangled energy bands
• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• Quantum Cluster Theories
• Kinetic frustration and the nature of the magnetic and paramagnetic states in iron pnictides and iron chalcogenides
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• Probing the Low-Energy Electronic Structure of Complex Systems by ARPES
• Wien2wannier: From linearized augmented plane waves to maximally localized Wannier functions
• Electronic correlations in the iron pnictides
• Selective Mottness as a key to iron superconductors
• Superconductivity without magnetism in LiFeAs
• Topological nature of FeSe${}_{0.5}$Te${}_{0.5}$ superconductor
• Satellites and large doping- and temperature-dependence of electronic properties in hole-doped BaFe2As2
• Spin dynamics and an orbital-antiphase pairing symmetry in iron-based superconductors
• Unconventional Anisotropic s-Wave Superconducting Gaps of LiFeAs Iron-Pnictide Superconductor
• High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies
• Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe0.55Se0.45
• Superconductivity from emerging magnetic moments
• Effects of correlation in LiFeAs
• Electronic structure of Pu and Am metals by self consistent relativistic GW
• Spin-Orbit Coupling and Electronic Correlations in Sr2RuO4
• Many-body effects in iron pnictides and chalcogenides -- non-local vs dynamic origin of effective masses
• Observation of strong electron pairing on bands without Fermi surfaces in LiFe1-xCoxAs
• Orbital selective Fermi surface shifts and mechanism of high T${}_c$ superconductivity in correlated AFeAs (A=Li,Na)
• Incommensurate magnetic excitations in superconducting LiFeAs
• A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs
• Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
• Linearized self-consistent quasiparticle GW method: Application to semiconductors and simple metals
• ComDMFT: a Massively Parallel Computer Package for the Electronic Structure of Correlated-Electron Systems
• Imaginary-time matrix product state impurity solver in a real material calculation: Spin-orbit coupling in Sr${}_2$RuO${}_4$
• Orbital-differentiated coherence-incoherence crossover identified by photoemission spectroscopy in LiFeAs
• Pairing Mechanism in Hunds Metal Superconductors and the Universality of the Superconducting Gap to Critical Temperature Ratio
• Effect of non-local correlations on the electronic structure of LiFeAs
• Influence of Spin Orbit Coupling in the Iron-Based Superconductors
• Unconventional Hall effect in pnictides from interband interactions
• QSGW+DMFT: an electronic structure scheme for the iron pnictides and beyond
• Non-local correlations in Iron Pnictides and Chalcogenides
• Evidence of hot and cold spots on the Fermi surface of LiFeAs
• Decoupled Pairing Amplitude and Electronic Coherence in Iron-Based Superconductors
• The Triplet Resonating Valence Bond State and Superconductivity in Hund's Metals
• ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
• Spin-orbit coupling in three-orbital Kanamori impurity model and its relevance for transition-metal oxides
• Validity of the Local Approximation in Iron- Pnictides and Chalcogenides
• Self-Energy Dispersion in the Hubbard Model

Cited by in corpus (9)

• Orbital Selective Mott Transition Effects and Non-Trivial Topology of Iron Chalcogenide
• Orbital-dependent self-energy effects and consequences for the superconducting gap structure in multi-orbital correlated electron systems
• Hund's metal crossover and superconductivity in the 111 family of iron-based superconductors
• The Three-Dimensional Electronic Structure of LiFeAs: Strong-coupling Superconductivity and Topology in the Iron Pnictides
• Accurate modeling of FeSe with screened Fock exchange and Hund's metal correlations
• Orbital-selective correlations and renormalized electronic structure in LiFeAs
• Spatial non-locality of electronic correlations beyond GW approximation
• Looking Beyond the Surface with Angle-Resolved Photoemission Spectroscopy
• Fragility of Topology under Electronic Correlations in Iron Chalcogenides