Orbital-weight redistribution triggered by spin order in the pnictides

Abstract

The one-particle spectral function and its orbital composition are investigated in a three-orbital model for the undoped parent compounds of the iron-based superconductors. In the realistic parameter regime, where results best fit experimental data, it is observed that the magnetization in the xz and yz orbitals are markedly different and the Fermi surface presents mostly xz character, as recently observed in photoemission experiments [T. Shimojima et al., Phys. Rev. Lett. 104, 057002 (2010)]. Since the ferro-orbital order in this regime is at most a few percent, these results are mainly driven by the magnetic order. An analogous analysis for a five-orbital model leads to similar conclusions.

arXiv commentpublished version

References in corpus (23)

• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• LaFeAsO${}_{1-x}$F${}_x$: A low carrier density superconductor near itinerant magnetism
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Competing Orders and Spin-Density-Wave Instability in La(O${}_{1-x}$F${}_x$)FeAs
• Is LaO${}_{1-x}$F${}_x$FeAs an electron-phonon superconductor ?
• Ferro-Orbital Order and Strong Magnetic Anisotropy in the Parent Compounds of Iron-Pnictide Superconductors
• Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors
• Variational cluster approach to correlated electron systems in low dimensions
• Electronic structure of the iron-based superconductor LaOFeP
• Proximity of antiferromagnetism and superconductivity in LaO${}_{1-x}$F${}_x$FeAs: effective Hamiltonian from ab initio studies
• Doping-dependent Phase Diagram of LaO{\it M}As ({\it M}=V--Cu) and Electron-type Superconductivity near Ferromagnetic Instability
• Three orbital model for the iron-based superconductors
• (pi,pi)-electronic order in iron arsenide superconductors
• Orbital-dependent modifications of electronic structure across magneto-structural transition in BaFe2As2
• Low energy spin waves and magnetic interactions in SrFe${}_2$As${}_2$
• Unconventional electronic reconstruction in undoped (Ba,Sr)Fe${}_2$As${}_2$ across the spin density wave transition
• Model for the Magnetic Order and Pairing Channels in Fe Pnictide Superconductors
• Magnetic Order of the Iron Spins in NdOFeAs
• Properties of a two orbital model for oxypnictide superconductors: Magnetic order, B_2g spin-singlet pairing channel, and its nodal structure
• Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
• Enhanced Orbital Degeneracy in Momentum Space for LaOFeAs
• Modeling Antiferromagnetic Phase in Iron Pnictides: Weakly Ordered State
• Multiorbital Effects on Antiferromagnetism in Fe Pnictides

Cited by in corpus (45)

• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• Orbital-driven nematicity in FeSe
• Orbital Ordering and Unfrustrated $(\pi ,0)$ Magnetism from Degenerate Double Exchange in the Iron Pnictides
• Unprecedented anisotropic metallic state in BaFe2As2 revealed by optical spectroscopy
• Role of the orbital degree of freedom in iron-based superconductors
• Symmetry breaking via orbital-dependent reconstruction of electronic structure in uniaxially strained NaFeAs
• Electronic nematic susceptibility of iron-based superconductors
• Nematic State of the Pnictides Stabilized by the Interplay Between Spin, Orbital, and Lattice Degrees of Freedom
• Orbitally and Magnetically Induced Anisotropy in Iron-based Superconductors
• Neutron and ARPES Constraints on the Couplings of the Multiorbital Hubbard Model for the Pnictides
• Conductivity anisotropy in the antiferromagnetic state of iron pnictides
• Effect of Co doping on the in-plane anisotropy in the optical spectrum of underdoped Ba(Fe1-xCox)2As2
• Orbital differentiation and the role of orbital ordering in the magnetic state of Fe superconductors
• Theory for Magnetism and Triplet Superconductivity in LiFeAs
• Spin excitation anisotropy as a probe of orbital ordering in the paramagnetic tetragonal phase of superconducting BaFe1.904Ni0.096As2
• Anisotropy of Electrical Transport in Pnictide Superconductors Studied Using Monte Carlo Simulations of the Spin-Fermion Model
• Dynamic competition between spin density wave order and superconductivity in underdoped $B{a}_{1-x}{K}_{x}F{e}_{2}A{s}_2$
• Phonon softening near structural transition in BaFe2As2 observed by inelastic x-ray scattering
• Multiorbital Spin Susceptibility in a Magnetically Ordered State - Orbital versus Excitonic Spin Density Wave Scenario
• Uniaxial pressure effect on structural and magnetic phase transitions in NaFeAs and its comparison with as-grown and annealed BaFe${}_2$As${}_2$
• Magnetic order in orbital models of the iron pnictides
• Angle-resolved photoemission study of the role of nesting and orbital orderings in the antiferromagnetic phase of BaFe2As2
• Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors
• Spin excitations in the nematic phase and the metallic stripe spin-density wave phase of iron pnictides
• Orbital-dependent effects of electron correlations in microscopic models for iron-based superconductors
• Bicollinear Antiferromagnetic Order, Monoclinic Distortion, and Reversed Resistivity Anisotropy in FeTe as a Result of Spin-Lattice Coupling
• Optical Conductivity Anisotropy in the Undoped Three-Orbital Hubbard Model for the Pnictides
• First Principles Study of CaFe2As2 "Collapse" Under Pressure
• Spectral density in a nematic state of iron pnictides
• Orbital density wave induced by electron-lattice coupling in orthorhombic iron pnictides
• Charge Stripes in the Two-Orbital Hubbard Model for Pnictides
• Tunneling spectroscopy for probing orbital anisotropy in iron pnictides
• Antiferromagnetism in Iron-Based Superconductors: Selection of Magnetic Order and Quasiparticle Interference
• Observation of orbital ordering and origin of the nematic order in FeSe
• Isostructural spin-density-wave and superconducting gap anisotropies in iron-arsenide superconductors
• Orbital Selective Directional Conductor in the Two Orbital Hubbard Model
• Drude weight anisotropy in the doped iron pnictides: the primary role of orbital weight redistribution along the reconstructed Fermi surfaces
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Influence of electronic correlations on orbital polarizations in the parent and doped iron pnictides
• The role of orbital order in the stabilization of the $(\pi ,0)$ ordered magnetic state in a minimal two-band model for iron pnictides
• Interplay of iron and rare-earth magnetic order in rare-earth iron pnictide superconductors under magnetic field
• The mechanism of anisotropic exchange interaction in superconducting iron arsenides
• Detecting the orbital character of the spin fluctuation in the Iron-based superconductors with the resonant inelastic X-ray scattering spectroscopy
• Orbital-lattice coupling and orbital ordering instability in iron pnictides
• Hund's coupling and electronic anisotropy in the spin-density wave state of iron pnictides