Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides

Abstract

Weak-coupling approaches to the pairing problem in the iron pnictide superconductors have predicted a wide variety of superconducting ground states. We argue here that this is due both to the inadequacy of certain approximations to the effective low-energy band structure, and to the natural near-degeneracy of different pairing channels in superconductors with many distinct Fermi surface sheets. In particular, we review attempts to construct two-orbital effective band models, the argument for their fundamental inconsistency with the symmetry of these materials, and the comparison of the dynamical susceptibilities in two- and five-orbital models. We then present results for the magnetic properties, pairing interactions, and pairing instabilities within a five-orbital Random Phase Approximation model. We discuss the robustness of these results for different dopings, interaction strengths, and variations in band structure. Within the parameter space explored, an anisotropic, sign-changing s-wave state and a d_x2-y2 state are nearly degenerate, due to the near nesting of Fermi surface sheets.

arXiv comment17 pages, 23 figures

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• Time-reversal symmetry breaking state near the surface of $s_{\pm }$-superconductor
• Orbital-dependent effects of electron correlations in microscopic models for iron-based superconductors
• Superconductivity Mediated by Nematic Fluctuations in Tetragonal $\text{Fe}{\text{Se}}_{1-x}{\text{S}}_x$
• Thermal Hall Conductivity as a Probe of Gap Structure in Multi-band Superconductors: The Case of $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{K}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• Orbital Symmetry of Ba(Fe1-xCox)2As2 Superconductors Probed with X-ray Absorption Spectroscopy
• Impact of Dynamic Orbital Correlations on Magnetic Excitations in the Normal State of Iron-Based Superconductors
• Spin triplet superconductivity driven by finite momentum spin fluctuations
• Pairing symmetry and topological surface state in iron-chalcogenide superconductors
• Experimental evidence for the importance of Hund's exchange interaction for the incoherence of the charge carriers in iron-based superconductors
• Spin-Density-Wave Gap with Dirac Nodes and Two-Magnon Raman Scattering in BaFe2As2
• Magnetic resonance from the interplay of frustration and superconductivity
• Antiferromagnetic order in multi-band Hubbard models for iron-pnictides
• The electronic instabilities of the Iron-based superconductors: a variational Monte-Carlo study
• A Common Thread
• Correlation, doping and interband effects on the optical conductivity of iron superconductors
• Magnetic Phase Diagram of a Five-Orbital Hubbard Model in the Real-Space Hartree Fock Approximation Varying the Electronic Density
• Novel Insulating Magnetism in Vacancy-Ordered K2Fe4Se5
• Unconventional pairing in single FeSe layers
• Impact of local-moment fluctuations on the magnetic degeneracy of iron arsenide superconductors
• Angular resolved specific heat in iron-based superconductors: the case for nodeless extended $s$-wave gap
• Evidence for spin-triplet odd-parity superconductivity close to type-II van Hove singularities
• High-Angular-Momentum Topological Superconductivity in the Largest-Angle Twisted Homo-bilayer Systems
• Nematicity and superconductivity: Competition versus cooperation
• GPU-based acceleration of free energy calculations in solid state physics
• Superconducting pairing in the spin-density-wave phase of iron pnictides
• Spontaneous time-reversal symmetry breaking by disorder in superconductors
• Novel Fe-based superconductor LaFe2As2 in comparison with traditional pnictides
• Pairing Symmetries of a Hole-Doped Extended Two-Orbital Model for the Pnictides
• Hidden $(\pi ,0)$ instability as an itinerant origin of bicollinear antiferromagnetism in Fe${}_{1+x}$Te
• Effect of gap anisotropy on the spin resonance peak in the superconducting state of iron-based materials
• Bounds on Nanoscale Nematicity in Single-Layer FeSe/SrTiO${}_3$
• Band Structure and Pairing Nature of La${}_3$Ni${}_2$O${}_7$ Thin Film at Ambient Pressure
• Double magnetic resonance and spin anisotropy in Fe-based superconductors due to static and fluctuating antiferromagnetic orders
• Effect of nodes, ellipticity and impurities on the spin resonance in Iron-based superconductors
• Spin resonance peak in Fe-based superconductors with unequal gaps
• Magnetic states of the five-orbital Hubbard model for one-dimensional iron-based superconductors
• Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
• Magnetic phase diagram of a two-orbital model for bilayer nickelates varying doping
• Orbital density wave induced by electron-lattice coupling in orthorhombic iron pnictides
• A Twisted Ladder: relating the Fe superconductors to the high $T_c$ cuprates
• Orbital-dependent self-energy effects and consequences for the superconducting gap structure in multi-orbital correlated electron systems
• Transport properties of 3D extended s-wave states in Fe-based superconductors
• Electronic structure of the BaTi${}_2$As${}_2$O parent compound of the titanium based oxypnictide superconductor
• Glide-Plane Symmetry and Superconducting Gap Structure of Iron-Based Superconductors
• NMR investigation of spin correlations in BaCo2As2
• Spectral density in a nematic state of iron pnictides
• Glide reflection symmetry, Brillouin zone folding and superconducting pairing for the $P4/nmm$ space group
• Evidence for a full energy gap for nickel-pnictide LaNiAsO_{1-x}F_x superconductors by ^{75}As nuclear quadrupole resonance
• Two-Particle Self-Consistent method for the multi-orbital Hubbard model
• ${}^{75}$As NMR of Ba(Fe${}_{0.93}$Co${}_{0.07}$)${}_2$As${}_2$ in High Magnetic Field
• Ab-initio perspective on structural and electronic properties of iron-based superconductors
• Displacement and annihilation of Dirac gap-nodes in d-wave iron-based superconductors
• Charge Stripes in the Two-Orbital Hubbard Model for Pnictides
• Functional renormalization group study of an eight-band model for the iron arsenides
• Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Microwave conductivity in the ferropnictides with specific application to Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Evolution of the neutron resonances in AFe2Se2
• Improper s-wave symmetry for the electronic pairing in iron-based superconductors by first-principles calculation
• Theory of nodal s+- wave pairing symmetry in the Pu-based 115 superconductor family
• Role of Degeneracy, Hybridization, and Nesting in the Properties of Multi-Orbital Systems
• Origin of Topological Surface Superconductivity in FeSe${}_{0.45}$Te${}_{0.55}$
• Robust spin fluctuations and $s\pm$ pairing in the heavily electron doped iron-based superconductors
• Time-reversal symmetry breaking in frustrated superconductor Re${}_2$Hf
• Multichannel superconductivity of monolayer FeSe on SrTiO${}_3$: Interplay of spin fluctuations and electron-phonon interaction
• Phase diagram of Josephson junction between s and s+- superconductors in dirty limit
• Analysis of transport properties of iron pnictides: spin-fluctuation scenario
• Magnetic and nematic orders of the 2DEG at oxide (111) surfaces and interfaces
• Origin of the non-monotonic variance of Tc in the 1111 iron based superconductors with isovalent doping
• Competing spin density wave, collinear, and helical magnetism in Fe1+xTe
• Normal State Spin Dynamics of Five-band Model for Iron-pnictides
• Basic electronic properties of iron selenide under variation of structural parameters
• Scaling of nascent nodes in extended s-wave superconductors
• Vacancy Driven Orbital and Magnetic Order in (K,Tl,Cs)${}_y$Fe${}_{2-x}$Se${}_2$
• Proximity fingerprint of s+- superconductivity
• Itinerant Ferromagnetism and $p+i{p}^{\prime }$ Superconductivity in Doped Bilayer Silicene
• FeSe and the missing electron pocket problem
• Tunneling spectroscopy for probing orbital anisotropy in iron pnictides
• Charge Density Waves and the Hidden Nesting of Purple Bronze K${}_{0.9}$Mo${}_6$O${}_{17}$
• Spin dynamics in electron-doped pnictide superconductors
• Anion height as a controlling parameter for the superconductivity in iron pnictides and cuprates
• Observation of non-Fermi liquid behavior in hole-doped LiFe${}_{1-x}$V${}_x$As
• First-principles theory of electron-spin fluctuation coupling and superconducting instabilities in iron selenide
• Study of the magnetic state of K${}_{0.8}$Fe${}_{1.6}$Se${}_2$ using the five-orbital Hubbard model in the Hartree-Fock approximation
• Electronic structure properties in the nematic phases of FeSe
• Exotic Superconductivity Through Bosons in a Dynamical Cluster Approximation
• Searching for topological density wave insulators in multi-orbital square lattice systems
• Orbital superconductivity, defects and pinned nematic fluctuations in the doped iron chalcogenide FeSe${}_{0.45}$Te${}_{0.55}$
• Direct probing of a large spin-orbit coupling in the FeSe superconducting monolayer on STO: Evidence for nontrivial topological states
• Multiple phase transitions in Pauli limited iron-based superconductors
• Magnetic moment evolution and spin freezing in doped BaFe${}_2$As${}_2$
• Is BaCr${}_2$As${}_2$ symmetrical to BaFe${}_2$As${}_2$ with respect to half $3d$ shell filling?
• Effect of surface morphology and magnetic impurities on the electronic structure in cobalt-doped BaFe2As2 superconductors
• Crossover between electron-electron and electron-phonon mediated pairing on the Kagome lattice
• Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene
• Electronic structure and two-band superconductivity in unconventional high-$T_c$ cuprates Ba${}_2$CuO${}_{3+\delta }$
• Dirac cone in iron-based high Tc superconductors
• Fully gapped superconductivity in SrNi${}_2$P${}_2$
• Magnetic field effects in electron systems with imperfect nesting
• Raman resonance in iron-based superconductors: The magnetic scenario
• Anisotropic magnetic excitations and incipient Néel order in Ba(Fe${}_{1-x}$Mn${}_x$)${}_2$As${}_2$
• Single vortex structure in two models of iron pnictide $s^{\pm }$ superconductivity
• Enhancement of the critical temperature in iron-pnictide superconductors by finite size effects
• Elementary Excitations due to Orbital Degrees of Freedom in Iron Based Superconductors
• Identifying Topological Superconductivity in 2D Transition-Metal Dichalcogenides
• ARPES Detection of Superconducting Gap Sign in Unconventional Superconductors
• Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors
• Spin and Charge Fluctuation Induced Pairing in ABCB Tetralayer Graphene
• Origins of bond and spin order in rare-earth nickelate bulk and heterostructures
• Robust accidental nodes and zeroes and critical quasiparticle scaling in iron-based multiband superconductors
• Symmetry-mixed bound-state order: extended degeneracy of $(d+ig)$-superconductivity in ${\mathrm{Sr}}_2\mathrm{Ru}{\mathrm{O}}_4$
• Ising-nematic order in the bilinear-biquadratic model for the iron pnictides
• Structure of the pairing gap from orbital nematic fluctuations
• $B_{1g}$-like pairing states in two-leg ladder iron superconductors
• Fluctuations and pairing in Fe-based superconductors: Light scattering experiments
• Singlet $s^{\pm }$-wave pairing in quasi-one-dimensional ACr${}_3$As${}_3$ (A=K, Rb, Cs) superconductors
• Least momentum space frustration as a condition for "high $T_c$ sweet spot" in the iron-based superconductors
• Orbital selectivity of layer resolved tunneling on iron superconductor Ba0.6K0.4Fe2As2
• Nesting Induced Large Magnetoelasticity in the Iron Arsenide Systems
• The Three-Dimensional Electronic Structure of LiFeAs: Strong-coupling Superconductivity and Topology in the Iron Pnictides
• Tight-binding Hamiltonian for LaOFeAs
• Spin-density wave and superconductivity in La${}_4$Ni${}_3$O${}_{10}$ under ambient pressure
• Orbital Nematic Order and Interplay with Magnetism in the Two-Orbital Hubbard Model
• Orbital loop currents in iron-based superconductors
• Contrasting Ferromagnetism in Pyrite FeS${}_2$ Induced by Chemical Doping versus Electrostatic Gating
• Braiding of edge states in narrow zigzag graphene nanoribbons: effect of the third neighbors hopping
• Evolution of the Fermi surface topology in doped 122 iron pnictides
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Evidence of nodal superconductivity in LaFeSiH
• From high-$T_c$ to low-$T_c$: Multi-orbital effects in transition metal oxides
• Emergent Nesting of the Fermi Surface from Local-Moment Description of Iron-Pnictide High-Tc Superconductors
• Low-Energy Quasiparticles Probed by Heat Transport in the Iron Based Superconductor LaFePO
• Doping dependence of antiferromagnetism in models of the pnictides
• A Three-Dimensional Tight-Binding Model and Magnetic Instability of KFe2e2
• Anomalous spectral weight transfer in the nematic state of iron-selenide superconductor
• Electronic dispersion anomalies in the iron pnictide superconductor Ba_{1-x}K_xFe_2As_2
• Simple Real-Space Picture of Nodeless and Nodal s-wave Gap Functions in Iron Pnictide Superconductors
• ARPES observation of isotropic superconducting gaps in isovalent Ru-substituted Ba(Fe${}_{0.75}$Ru${}_{0.25}$)${}_2$As${}_2$
• Modulation of pairing interaction in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ by an O dopant: a density functional theory study
• Interplay of Hidden Orbital Order and Superconductivity in CeCoIn5
• Topological superconductivity in Ni-based transition-metal trichalcogenide superconductors
• Shot-noise and differential conductance as signatures of putative topological superconductivity in FeSe${}_{0.45}$Te${}_{0.55}$
• High-Energy Damping by Particle-Hole Excitations in the Spin-Wave Spectrum of Iron-Based Superconductors
• Chiral SO(4) spin-valley density wave and degenerate topological superconductivity in magic-angle-twisted bilayer-graphene
• Non-Fermi Liquid behavior at the Orbital Ordering Quantum Critical Point in the Two-Orbital Model
• Spin Resonances in Iron-Selenide High-Tc Superconductors by Proximity to Hidden Spin Density Wave
• Electronic structure and ultrafast dynamics of FeAs-based superconductors by angle- and time-resolved photoemission spectroscopy
• Interlayer interactions in ${\text{La}}_3{\text{Ni}}_2{\text{O}}_7$ under pressure: from $s^{\pm }$ to $d_{xy}$-wave superconductivity
• Superconductivity by Hidden Spin Fluctuations in Electron-Doped Iron Selenide
• Quasiparticle scattering interference in iron pnictides: A probe of the origin of nematicity
• Triplet superconductivity in a model of Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Interlayer Coupling Induced Quasiparticles
• Signatures of nodeless multiband superconductivity and particle-hole crossover in the vortex cores of FeTe${}_{0.55}$Se${}_{0.45}$
• Impurity bound states and disorder-induced orbital and magnetic order in the s+- state of Fe-based superconductors
• Isostructural spin-density-wave and superconducting gap anisotropies in iron-arsenide superconductors
• Charge doping to flat AgF2 monolayers in a chemical capacitor setup
• Highly anisotropic quasiparticle interference patterns in the spin-density wave state of the iron pnictides
• Electronic structure and quantum criticality in Ba(Fe${}_{1-x-y}$Co${}_x$Mn${}_y$)${}_2$As${}_2$, an ARPES study
• Prediction of $f$-wave pairing symmetry in YBa${}_2$Cu${}_3$O${}_{6+x}$ cuprates
• Magnetic Correlations and Pairing Tendencies of the Hybrid Stacking Nickelate Superlattice La${}_7$Ni${}_5$O${}_{17}$ (La${}_3$Ni${}_2$O${}_7$/La${}_4$Ni${}_3$O${}_{10}$) under Pressure
• Making Chiral Topological Superconductivities from Non-topological Superconductivities Through the Twist
• Suppression of superconductivity by spin fluctuations in iron-based superconductors
• Superconductivity-induced Phonon Renormalization on NaFe${}_{1-x}$Co${}_x$As
• Electronic structure of vacancy-ordered iron-selenide K${}_{0.5}$Fe${}_{1.75}$Se${}_2$
• Effective minimal model and unconventional spin-singlet pairing in Kagome superconductor CsV3Sb5
• Electronic structure and Fermi surface of iron-based superconductors R2Fe3Si5 (R = Lu;Y;Sc) from first principles
• Evidence for Nodal superconductivity in Sr${}_2$ScFePO${}_3$
• Effect of electron correlations on spin excitation bandwidth in Ba${}_{0.75}$K${}_{0.25}$Fe${}_2$As${}_2$ as seen via time-of-flight inelastic neutron scattering
• Disentangling the surface and bulk electronic structures of LaOFeAs
• Coexistence of localized and itinerant magnetism in intercalated iron-selenide (Li,Fe)OHFeSe
• Electronic Structure, Magnetic and Pairing Tendencies of Alternating Single-layer Bilayer Stacking Nickelate La${}_5$Ni${}_3$O${}_{11}$ Under Pressure
• Itinerant scenario for Fe-pnictides: comparison with quantum Monte Carlo
• Two-Gap Superconductivity in CaFe_{0.88}Co_{0.12}AsF Revealed by Temperature Dependence of the Lower Critical Field H_{c1}^c(T)
• Many-body physics-induced selection rules: application to Raman spectroscopy
• Microscopic origin of ultranodal superconducting states in spin-1/2 systems
• Competing magnetic states on the surface of multilayer ABC-stacked graphene
• Orbital Resonance Mode in Superconducting Iron Pnictides
• Origin of pressure induced second superconducting dome in AyFe2-xSe2 [A=K, (Tl,Rb)]
• Importance of Itinerancy and Quantum Fluctuations for the Magnetism in Iron Pnictides
• Constraints Imposed by Symmetry on Pairing Operators for the Pnictides
• Nodeless two-gap superconductivity in stoichiometric iron pnictide LiFeAs
• Fractional Flux Plateau in Magnetization Curve of Multicomponent Superconductor Loop
• Anisotropic magnetic excitations of a frustrated bilinear-biquadratic spin model -- Implications for spin waves of detwinned iron pnictides
• Origin of the Diagonal Double-Stripe Spin-Density-Wave and Potential Superconductivity in Bulk La${}_3$Ni${}_2$O${}_7$ at Ambient Pressure
• The effect of spin fluctuations on the electronic structure in iron based superconductors
• Theoretical study on the correlation between the spin fluctuation and $T_c$ in the isovalent-doped 1111 iron-based superconductors
• $d+id$ chiral superconductivity in a triangular lattice from trigonal bipyramidal complexes
• Multiple energy gap features of superconducting FeSe investigated by tunneling spectroscopy
• Effective tight-binding model for the iron vacancy ordered A${}_y$FeSe${}_2$
• A polarized neutron diffraction study of the field-induced magnetization in the normal and superconducting states of Ba(Fe1-xCox)2As2 (x=0.65)
• Spin correlation in trigonal EuMn${}_2$As${}_2$
• The effect of disorder on electronic Raman scattering in the superconducting state of iron pnictides
• Superconductivity from spin fluctuations and long-range interactions in magic-angle twisted bilayer graphene
• Possible Way to Make MgFeGe a New Fe-based Superconductor
• Drude weight anisotropy in the doped iron pnictides: the primary role of orbital weight redistribution along the reconstructed Fermi surfaces
• Competing topological superconducting phases in FeSe${}_{0.45}$Te${}_{0.55}$
• Semimetallic spin-density wave state in iron pnictides
• Hybrid s-wave superconductivity in CrB${}_2$
• Anomalous Shiba states in topological iron-based superconductors
• A silver(II) route to unconventional superconductivity
• Multiband superconductivity in $\mathrm{Bi}{\mathrm{S}}_2$-based layered compounds
• Odd-frequency Pairing in the Edge States of Superconducting Pnictides in the Coexistence Phase with Antiferromagnetism
• Strain-induced superconductivity in Sr2IrO4
• Fermi surfaces of iron-pnictide high-Tc superconductors from the limit of local magnetic moments
• Friedel oscillations and chiral superconductivity in monolayer NbSe${}_2$
• Orbital-selective correlations and renormalized electronic structure in LiFeAs
• Lifshitz transition enhanced triplet $p_z$-wave superconductivity in hydrogen doped KCr${}_3$As${}_3$
• One- and two-particle correlation functions in the cluster perturbation theory for cuprates
• Collective Mode at Lifshitz Transition in Iron-Pnictide Superconductors
• Electronic structure of ruthenium-doped iron chalcogenides
• Triplet $p$-wave pairing correlation in low doped zigzag graphene nanoribbons
• Theory of spin-excitation anisotropy in the nematic phase of FeSe obtained from RIXS measurements
• Charge fluctuations in the unconventional metallic state of Li0.9Mo6O17
• Observation of strong-coupling pairing with weakened Fermi-surface nesting at optimal hole doping in Ca${}_{0.33}$Na${}_{0.67}$Fe${}_2$As${}_2$
• Understanding the re-entrant superconducting phase diagram of an iron-pnictide Ca${}_4$Al${}_2$O${}_6$Fe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Magnetic and pairing properties of a two-orbital model for the pnictide superconductors: A quantum Monte Carlo study
• Angle-resolved photoemission studies of the superconducting gap symmetry in Fe-based superconductors
• The electronic structure of rare-earth iron silicide R2Fe3Si5 superconductors
• General trends of electronic structures, superconducting pairing, and magnetic correlations in the Ruddlesden-Popper nickelate $m$-layered superconductors La${}_{m+1}$Ni${}_m$O${}_{3m+1}$
• Repulsion and attraction in high Tc superconductors
• Spin and charge susceptibilities of the two-orbital model within the cluster perturbation theory for Fe-based materials
• Imaging half-unit-cell Cooper-pair density waves in monolayer 1T${}^{\prime }$-MoTe${}_2$
• Repulsive interaction helps superconductivity in fullerides
• Specific heat in strongly hole-doped Iron-based superconductors
• Importance of Fermi surface and magnetic interactions for the superconducting dome in electron doped FeSe intercalates
• Theory of Magnetic Fluctuations in Iron Pnictides
• Exploring multichannel superconductivity in ThFeAsN
• Common effect of chemical and external pressures on the magnetic properties of $R$CoPO ($R$ = La, Pr, Nd, Sm). II
• Stabilization of $s$-wave superconductivity through arsenic $p$-orbital hybridization in electron-doped BaFe${}_2$As${}_2$
• Electronic structure, spin excitations, and orbital ordering in a three-orbital model for iron pnictides
• Unconventional pairing in Ising superconductors: Application to monolayer NbSe${}_2$
• The phonon mechanism explanation of the superconductivity dichotomy between FeSe and FeS monolayers on STO and other substrates
• Doping evolution of the gap structure and spin-fluctuation pairing in $Ba(F{e}_{1-x}C{o}_x{)}_{2}A{s}_2$ superconductors
• Roles of anisotropic and unequal gaps in the quasiparticle interference of superconducting iron pnictides
• Direct evidence of a charge depletion region at the interface of Van der Waals monolayers and dielectric oxides: The case of superconducting FeSe/STO
• H-wave -- A Python package for the Hartree-Fock approximation and the random phase approximation
• Study of Ni and Zn doped CeOFeAs: Effect on the structural transition and specific heat capacity
• Low-energy bound states at interfaces between superconducting and block antiferromagnet regions in KxFe{2-y}Se2
• Possible Nematic Order Driven by Magnetic Fluctuations in Iron Pnictides
• Suppression of Peierls-like, nesting-based instabilities in solids
• Direct observation of the spin exciton in Andreev spectroscopy of iron-based superconductors
• Thermodynamic properties of nodal superconductors close to a magnetic quantum critical point
• Surface Nematic Order in Iron Pnictides
• Momentum distribution and non-Fermi liquid behaviour in low-doped two-orbital model: finite-size cluster quantum Monte Carlo approach
• BaCuS2: a superconductor with moderate electron-electron correlation
• Competing magnetic fluctuations and orders in a multiorbital model of doped SrCo${}_2$As${}_2$
• Orbital-transverse density-wave instabilities in iron-based superconductors
• Robust $s_{\pm }$-wave pairing in a bilayer two-orbital model of pressurized La${}_3$Ni${}_2$O${}_7$ without the $\gamma$ Fermi surface
• P-T phase diagram of iron arsenide superconductor NdFeAsO0.88F0.12
• Theory of Andreev reflection in a two-orbital model of iron-pnictide superconductors
• Superconductivity In K- And Na- Doped Bafe2as2: What Can We Learn From Heat Capacity And Pressure Dependence of Tc
• Breakdown of the Hund's Rule in CuFeAs
• Pressure-induced magnetism in iron-based superconductors $A$Fe${}_2$As${}_2$ ($A=$ K, Cs, Rb)
• Multi-orbital quantum antiferromagnetism in iron pnictides --- effective spin couplings and quantum corrections to sublattice magnetization
• Order parameter sign-reversal near $s_{\pm }$-superconductor surface
• Itinerant fermions on a triangular lattice: unconventional magnetism and other ordered states
• Universal quasi-degenerate orbital origin of two-dome phases in iron pnictide superconductors
• Unconventional superconducting gap via spin fluctuations in iron-vacancy ordered A${}_y$Fe${}_{2-x}$Se${}_2$
• Effect of pairing fluctuations on the spin resonance in Fe-based superconductors
• Superconductivity in striped and multi-Fermi-surface Hubbard models: From the cuprates to the pnictides
• Compressive Strain Turns $s^{\pm }$ into $d$-Wave Pairing in One-unit-cell La${}_3$Ni${}_2$O${}_7$ Thin Film Via Substrate-Induced Hole Doping
• Theoretical investigation of the superconducting pairing symmetry in a bilayer two-orbital model of pressurized La${}_3$Ni${}_2$O${}_7$
• Superconducting states of a J1-J2-K model for iron pnictides
• Quasiparticle scattering in a superconductor near a nematic critical point: resonance mode and multiple attractive channels
• Superconductivity induced by flexural modes in non ${\sigma }_{\mathrm{h}}$-symmetric Dirac-like two-dimensional materials: A theoretical study for silicene and germanene
• Superconducting order parameter structure in the nematic phase of iron-based materials
• Pairing mechanism and superconductivity in pressurized La${}_5$Ni${}_3$O${}_{11}$
• Multiple gaps revealed by low temperature specific heat in the 1111-type CaFe_{0.88}Co_{0.12}AsF single crystals
• Role of interactions in the energy of the spin resonance peak in Fe-based superconductors
• Incommensurate spin fluctuations and competing pairing symmetries in La${}_3$Ni${}_2$O${}_7$
• The role of orbital nesting in the superconductivity of Iron-based Superconductors
• Interrupted orbital motion in density-wave systems
• Terahertz pulse-driven collective mode in the nematic superconducting state of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Theory for doping trends in titanium oxypnictide superconductors
• Multiple superconducting gap and anisotropic spin fluctuations in iron arsenides: Comparison with nickel analog
• Triplet pairing, orbital selectivity and correlations in Iron-based superconductors
• Van-Hove tuning of Fermi surface instabilities through compensated metallicity
• Magnetic excitations in the normal and nematic phases of iron pnictides
• Pairing mechanism and superconductivity in 1313 phase La${}_3$Ni${}_2$O${}_7$
• Unconventional superconductivity in monolayer transition metal dichalcogenides
• Theoretical study of the electronic correlation and superconducting pairing in La${}_{2.85}$Pr${}_{0.15}$Ni${}_2$O${}_7$ film grown on SrLaAlO${}_4$
• Electric Field Induced Superconductivity in Bilayer Octagraphene
• Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides
• Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides
• Consistent picture of the octet-nodal gap and its evolution with doping in heavily overdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Orbital-selective spin-triplet superconductivity in infinite-layer LaNiO${}_2$
• Acoustic lattice instabilities at the magneto-structural transition in Fe${}_{1.057(7)}$Te
• Orbital driven two-dome superconducting phases in multiorbital superconductors
• Topological $p_z$-wave nodal-line superconductivity with flat surface bands in the AH${}_x$Cr${}_3$As${}_3$ (A=Na, K, Rb, Cs) superconductors
• Doping-dependent orbital magnetism in Chromium pnictides
• Tuning Superconductivity by Isovalent Antimony Substitution in PrFeAs(O,F)
• Dual Enhancement of Superconductivity in FeSe/SrTiO3 via Orbital and Correlation Synergy
• Three-dimensional spin susceptibility in Ba${}_{0.75}$K${}_{0.25}$Fe${}_2$As${}_2$: Out-of-plane modulation revealed by neutron spectroscopy and theoretical modeling
• Weak coupling theory of nickel-based 327 superconductors
• Normal state magnetotransport properties of $\beta$-FeSe superconductors
• Coupled Hubbard ladders at weak coupling: Pairing and spin excitations
• Specific Heat and the gap structure of a Nematic Superconductor, application to FeSe
• Stripes and Pairing in High Temperature Superconductors
• Spin-orbit coupling in Fe-based superconductors
• Feedback of non-local $d_{xy}$ nematicity on the magnetic anisotropy in FeSe
• Spin-nematic order induced superconductivity
• Impurity-induced smearing of the spin resonance peak in Fe-based superconductors
• Magnetism of magic-angle twisted bilayer graphene
• "Universal" ${\Delta }_{max}/T_c$ in Fe Based Superconductors
• Hydrogen Doping Induced $p_x\pm i{p}_y$ Triplet Superconductivity in Quasi-One-Dimensional K${}_2$Cr${}_3$As${}_3$
• 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
• Onset of spin-valley order and Stoner boundaries in twisted WSe${}_2$
• Intertwined geometries in collective modes of two dimensional Dirac fermions
• Magneto-orbital coupling in iron pnictides