Tight-binding models for the new iron based superconductor materials

Abstract

The rich novel materials class of iron based superconductors turned out to exhibit a very complex electronic structure, despite of the simplicity of their crystal structures. For various approaches to study the instability against magnetic order or superconductivity, a real space description of the electronic structure is required. Here, the bonding situation and the orbital structure of the electronic state are analyzed and minimum tight-binding models quantitatively correctly describing the low-energy electronic structure are provided.

References in corpus (12)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• Spin density wave anomaly at 140 K in the ternary iron arsenide BaFe2As2
• The superconductivity at 18 K in LiFeAs system
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Superconductivity at 27 K in tetragonal FeSe under high pressure
• Extreme Sensitivity of Superconductivity to Stoichiometry in FeSe (Fe1+dSe)
• The challenge of unravelling magnetic properties in LaFeAsO
• Intrinsic Properties of Stoichiometric LaOFeP
• High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy
• Magnetism and Superconductivity in the Two-Dimensional 16 Band d-p Model for Iron-Based Superconductors

Cited by in corpus (160)

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• Theoretical prediction of a strongly correlated Dirac metal
• The s${}^{\pm }$-Wave Pairing and the Destructive Role of Apical-Oxygen Deficiencies in La${}_3$Ni${}_2$O${}_7$ Under Pressure
• Nematicity, magnetism and superconductivity in FeSe
• Using Gap Symmetry and Structure to Reveal the Pairing Mechanism in Fe-based Superconductors
• Orbital selective pairing and gap structures of iron-based superconductors
• Low-energy microscopic models for iron-based superconductors: a review
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• On the multi-orbital band structure and itinerant magnetism of iron-based superconductors
• Evidence for unidirectional nematic bond ordering in FeSe
• Orbital-dependent Fermi Surface shrinking as a fingerprint of nematicity in FeSe
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• Topological Phases in the Single-Layer FeSe
• Model of Electronic Structure and Superconductivity in Orbitally Ordered FeSe
• Breakdown of magnetic order in the pressurized Kitaev iridate $\beta$-Li${}_2$IrO${}_3$
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• Critical current scaling and anisotropy in oxypnictide superconductors
• Superconductivity from repulsion in LiFeAs: novel s-wave symmetry and potential time-reversal symmetry breaking
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• Bridging frustrated-spin-chain and spin-ladder physics: quasi-one-dimensional magnetism of BiCu2PO6
• Superconducting gap in LiFeAs from three-dimensional spin-fluctuation pairing calculations
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• Evidence for eight node mixed-symmetry superconductivity in a correlated organic metal
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• Identifying the `Fingerprint' of Antiferromagnetic Spin-Fluctuations on Iron-Pnictide Superconductivity
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• Magnetic model for A2CuP2O7 (A = Na, Li) revisited: 1D versus 2D behavior
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• Tight-binding Hamiltonian for LaOFeAs
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• Anomalously large spin-dependent electron correlation in nearly half-metallic ferromagnet CoS${}_2$
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• Exploring d-Wave Magnetism in Cuprates from Oxygen Moments
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• Cooper Pairing in Insulating Valence Band in Fe-Based Superconductors
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• Short-range order of Br and three-dimensional magnetism in (CuBr)LaNb2O7
• Anisotropic Field-Induced Gap in Quasi-One-Dimensional Antiferromagnet KCuMoO${}_4$(OH)
• Ab initio ligand field approach to determine electronic multiplet properties
• Ground state and low-temperature magnetism of the quasi-two-dimensional honeycomb compound InCu${}_{2/3}$V${}_{1/3}$O${}_3$
• Exploring the Electronic Potential of Effective Tight$-$Binding Hamiltonians
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• Comment on "Nonmagnetic Impurity Resonances as a Signature of Sign-Reversal Pairing in Fe-As-Based Superconductors"
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• Importance of Fermi surface and magnetic interactions for the superconducting dome in electron doped FeSe intercalates
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• Breaking of four-fold lattice symmetry in a model for pnictide superconductors
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• PhD Thesis: Electronic correlations in multiorbital systems