Gap symmetry and structure of Fe-based superconductors

Abstract

The recently discovered Fe-pnictide and chalcogenide superconductors display low-temperature properties suggesting superconducting gap structures which appear to vary substantially from family to family, and even within families as a function of doping or pressure. We propose that this apparent nonuniversality can actually be understood by considering the predictions of spin fluctuation theory and accounting for the peculiar electronic structure of these systems, coupled with the likely 'sign-changing s-wave' (s\pm) symmetry. We review theoretical aspects, materials properties and experimental evidence relevant to this suggestion, and discuss which further measurements would be useful to settle these issues.

86 pages, review

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Cited by in corpus (737)

• Superconductivity in Iron Compounds
• A Common Thread: the pairing interaction for the unconventional superconductors
• Nematic order in iron superconductors - who is in the driver's seat?
• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• High Temperature Superconductivity in Iron Pnictides and Chalcogenides
• Iron-Based Superconductors: current status of materials and pairing mechanism
• Quantum critical point lying beneath the superconducting dome in iron-pnictides
• Discovery of Orbital-Selective Cooper Pairing in FeSe
• A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
• The Unexpected Properties of Alkali Metal Iron Selenide Superconductors
• Effect of magnetic frustration on nematicity and superconductivity in Fe chalcogenides
• Enhancement of superconductivity near a nematic quantum critical point
• Majorana corner modes in a high-temperature platform
• Ironing out the details of unconventional superconductivity
• Non-Fermi liquid and topological states with strong spin-orbit coupling
• Unconventional Superconductivity
• Theoretical prediction of a strongly correlated Dirac metal
• Observation of a Robust Zero-energy Bound State in Iron-based Superconductor Fe(Te,Se)
• Iron based superconductors: magnetism, superconductivity and electronic structure
• Iron based high transition temperature superconductors
• Nematic quantum critical point without magnetism in FeSe1-xSx superconductors
• Self-Consistent Vertex Correction Analysis for Iron-Based Superconductors: Mechanism of Coulomb-Interaction-Driven Orbital Fluctuations
• Functional Renormalization Group for multi-orbital Fermi Surface Instabilities
• Possible high $T_c$ Superconductivity in La${}_3$Ni${}_2$O${}_7$ under High Pressure through Manifestation of a Nearly-Half-Filled Bilayer Hubbard Model
• Concepts relating magnetic interactions, intertwined electronic orders and strongly correlated superconductivity
• Signature of Dispersing 1D Majorana Channels in an Iron-based Superconductor
• Role of the orbital degree of freedom in iron-based superconductors
• Monolayer FeSe on SrTiO${}_3$
• Anisotropic Energy Gaps of Iron-based Superconductivity from Intra-band Quasiparticle Interference in LiFeAs
• Anomalous correlation effects and unique phase diagram of electron doped FeSe revealed by angle resolved photoemission spectroscopy
• Plain s-wave superconductivity in single-layer FeSe on SrTiO3 probed by scanning tunneling microscopy
• Using Gap Symmetry and Structure to Reveal the Pairing Mechanism in Fe-based Superconductors
• Spin dynamics and an orbital-antiphase pairing symmetry in iron-based superconductors
• Electronic Correlation and Magnetism in the Ferromagnetic Metal Fe3GeTe2
• Majorana corner states in a two-dimensional magnetic topological insulator on a high-temperature superconductor
• s+is State with Broken Time Reversal Symmetry in Fe-Based Superconductors
• Higher Order Topology and Nodal Topological Superconductivity in Fe(Se,Te) Heterostructures
• Nodeless superconductivity in the kagome metal CsV${}_3$Sb${}_5$
• Observation of two distinct $d_{xz}/d_{yz}$ band splittings in FeSe
• Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides
• Helical Hinge Majoranas in Iron-Based Superconductors
• Orbital selective pairing and gap structures of iron-based superconductors
• Disorder induced transition between s_+- and s_++ states in two-band superconductors
• Low-energy microscopic models for iron-based superconductors: a review
• Scanning Tunneling Microscopy/Spectroscopy of Vortices in LiFeAs
• Anisotropic thermodynamic and transport properties of single crystalline CaKFe${}_4$As${}_4$
• A review of two-band superconductivity: materials and effects on the thermodynamic and reversible mixed-state properties
• Enhanced superconductivity and evidence for novel pairing in single-layer FeSe on SrTiO3 thin film under large tensile strain
• Magnetism, superconductivity, and spontaneous orbital order in iron-based superconductors: who comes first and why?
• Electronic Structure and Superconductivity of FeSe-Related Superconductors
• Change of pairing symmetry in the iron-based superconductor KFe2As2
• On the Remarkable Superconductivity of FeSe and its Close Cousins
• Exotic Superconducting States in FeSe-based Materials
• Inter-pocket pairing and gap symmetry in Fe-based superconductors with only electron pockets
• Fe-based superconductors: seven years later
• Double-Q spin-density wave in iron arsenide superconductors
• Surface electronic structure and isotropic superconducting gap in (Li${}_{0.8}$Fe${}_{0.2}$)OHFeSe
• Imaging superconducting vortex core and lattice with the scanning tunneling microscope
• Nematicity as a probe of superconducting pairing in iron-based superconductors
• A magnetic origin for high temperature superconductivity in iron pnictides
• Introduction to Holographic Superconductor Models
• Observation of Double-Dome Superconductivity in Potassium-Doped FeSe Thin Films
• One-sign order parameter in iron based superconductor
• Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors
• Superconducting gap anisotropy in monolayer FeSe thin film
• KFe_2Se_2 is the parent compound of K-doped iron selenide superconductors
• Two distinct superconducting pairing states divided by the nematic end point in FeSe${}_{1-x}$S${}_x$
• Sign-Problem-Free Fermionic Quantum Monte Carlo: Developments and Applications
• Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor
• Disorder-induced topological change of the superconducting gap structure in iron pnictides
• Strong $(\pi ,0)$ spin fluctuations in $\beta$-FeSe observed by neutron spectroscopy
• Coexistence and competition of the short-range incommensurate antiferromagnetic order with superconductivity in BaFe2-xNixAs2
• Electron pairing in the presence of incipient bands in iron-based superconductors
• Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer
• Nodeless vs nodal order parameters in LiFeAs and LiFeP superconductors
• Highly Anisotropic Superconducting Gap in Nematically Ordered and Tetragonal Phases of FeSe${}_{1-x}$S${}_x$
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Evolution of symmetry and structure of the gap in Fe-based superconductors with doping and interactions
• Superconductivity vs bound state formation in a two-band superconductor with small Fermi energy -- applications to Fe-pnictides/chalcogenides and doped SrTiO3
• Using controlled disorder to distinguish $s_{\pm }$ and $s_{++}$ gap structure in Fe-based superconductors
• Enhancement of the superconducting gap by nesting in CaKFe4As4 - a new high temperature superconductor
• Superconductivity suppression of Ba0.5K0.5Fe2-2xM2xAs2 single crystals by substitution of transition-metal (M = Mn, Ru, Co, Ni, Cu, and Zn)
• Scrutinizing the double superconducting gaps and strong coupling pairing in (Li1-xFexOH)FeSe
• Orbital upper critical field of type-II superconductors with pair breaking
• Surface impedance and optimum surface resistance of a superconductor with imperfect surface
• Scaling between magnetic and lattice fluctuations in iron-pnictide superconductors
• Tunneling spectroscopy of gate-induced superconductivity in MoS${}_2$
• Materials Design for New Superconductors
• Enhancing Superconductivity by Disorder
• Scanning tunneling spectroscopy of superconducting LiFeAs single crystals: Evidence for two nodeless energy gaps and coupling to a bosonic mode
• Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu2Si2
• Topological quantum states of matter in iron-based superconductors: From concepts to material realization
• Observation of strong electron pairing on bands without Fermi surfaces in LiFe1-xCoxAs
• Highly anisotropic and two-fold symmetric superconducting gap in nematically ordered FeSe${}_{0.93}$S${}_{0.07}$
• Leggett modes in iron-based superconductors as a probe of Time Reversal Symmetry Breaking
• Enhancement of $T_c$ by disorder in underdoped iron pnictides
• Spin reorientation in Na-doped BaFe${}_2$As${}_2$ studied by neutron diffraction
• Finite energy spin fluctuation as a pairing glue in systems with coexisting electron and hole bands
• Boundary-obstructed topological high-T${}_c$ superconductivity in iron pnictides
• Strong Correlations, Strong Coupling and s-wave Superconductivity in Hole-doped BaFe2As2 Single Crystals
• Gap Symmetry in KFe_2As_2 and cos 4θgap component in LiFeAs
• Effect of electron irradiation on superconductivity in single crystals of Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ ($x=$0.24)
• Experimental Demonstration of the Sign Reversal of the Order Parameter in (Li1-xFex)OHFe1-yZnySe
• Hund interaction, spin-orbit coupling and the mechanism of superconductivity in strongly hole-doped iron pnictides
• Extraordinary quasiparticle scattering and bandwidth-control by dopants in iron-based superconductors
• Superconducting Properties of the $s^{\pm }$-wave state: Fe-based superconductors
• Interface high-temperature superconductivity
• Effects of strain on the electronic structure, superconductivity, and nematicity in FeSe studied by angle-resolved photoemission spectroscopy
• Magnetic field dependence of the density of states in the multiband superconductor $\beta$-Bi${}_2$Pd
• Exploring Topological Superconductivity in Topological Materials
• Effective model and pairing tendency in bilayer Ni-based superconductor La${}_3$Ni${}_2$O${}_7$
• A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs
• Superconductivity with broken time reversal symmetry in ion irradiated Ba${}_{0.27}$K${}_{0.73}$Fe${}_2$As${}_2$ single crystals
• Two-band superconductivity in doped SrTiO${}_3$ films and interfaces
• Crystalline Nodal Topological Superconductivity and Bogolyubov Fermi Surfaces in Monolayer NbSe${}_2$
• Resilient nodeless $d$-wave superconductivity in monolayer FeSe
• Influence of the multiband sign changing superconductivity on the vortex cores and on vortex pinning in the new stoichiometric high Tc CaKFe4As4
• Superconductivity from repulsion in LiFeAs: novel s-wave symmetry and potential time-reversal symmetry breaking
• Phase diagram of iron-pnictides if doping acts as a disorder
• Unified picture of the doping dependence of superconducting transition temperatures in alkali metal/ammonia intercalated FeSe
• High-Tc Superconductivity near the Anion Height Instability in Fe-based Superconductors: Analysis of LaFeAsO${}_{1-x}$H${}_x$
• Raman-Scattering Detection of Nearly Degenerate $s$-Wave and $d$-Wave Pairing Channels in Iron-Based Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ and Rb${}_{0.8}$Fe${}_{1.6}$Se${}_2$ Superconductors
• Sensitive dependence of pairing symmetry on Ni-$e_g$ crystal field splitting in the nickelate superconductor La${}_3$Ni${}_2$O${}_7$
• Superconductivity in FeSe thin films driven by the interplay between nematic fluctuations and spin-orbit coupling
• Splitting of resonance excitations in nearly optimally doped Ba(Fe0.94Co0.06)2As2: an inelastic neutron scattering study with polarization analysis
• Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
• Superconducting gap in LiFeAs from three-dimensional spin-fluctuation pairing calculations
• Suppression of superconductivity by Neel-type magnetic fluctuations in the iron pnictides
• Superconducting gap structure of FeSe
• Surface electronic structure and evidence of plain s-wave superconductivity in (Li0.8Fe0.2)OHFeSe
• Anomalous critical fields in quantum critical superconductors
• Enhancement of the London penetration depth in pnictides at the onset of SDW order under superconducting dome
• Visualization of atomic-scale phenomena in superconductors: application to FeSe
• Superconducting pairing mediated by spin-fluctuations from first principles
• Fermi surface in KFe2As2 determined via de Haas-van Alphen oscillation measurements
• Pairing Symmetry in Layered BiS${}_2$ Compounds Driven by Electron-Electron Correlation
• Quantum Monte Carlo Study of Pairing Symmetry and Correlation in Iron-based Superconductors
• Topological Ultranodal pair states in iron-based superconductors
• Spin reorientation driven by the interplay between spin-orbit coupling and Hund's rule coupling in iron pnictides
• Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2
• Neutron spin resonance in a quasi-two-dimensional iron-based superconductor
• Linear Response Theory for Shear Modulus $C_{66}$ and Raman Quadrupole Susceptibility: Significant Evidence for Orbital Nematic Fluctuations in Fe-Based Superconductors
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• CaFeAs${}_2$: a Staggered Intercalation of Quantum Spin Hall and High Temperature Superconductivity
• Short-range cluster spin glass near optimal superconductivity in BaFe${}_{2-x}$Ni${}_x$As${}_2$
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• Scaling of the superconducting gap with orbital character in FeSe
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• Sign inversion in the superconducting order parameter of LiFeAs inferred from Bogoliubov quasiparticle interference
• In-Gap Quasiparticle Excitations Induced by Non-Magnetic Cu Impurities in Na(Fe0.96Co0.03Cu0.01)As Revealed by Scanning Tunneling Spectroscopy
• Evidence of nematic order and nodal superconducting gap along [110] direction in RbFe2As2
• A balancing act: Evidence for a strong subdominant d-wave pairing channel in $\mathrm{B}{\mathrm{a}}_{0.6}{\mathrm{K}}_{0.4}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
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• Electron doping evolution of the magnetic excitations in BaFe2-xNixAs2
• Superconducting state in Fe-based materials and spin-fluctuation theory of pairing
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• Ab initio Study of Cross-Interface Electron-Phonon Couplings in FeSe Thin Films on SrTiO${}_3$ and BaTiO${}_3$
• Emergence of an incipient ordering mode in FeSe
• Josephson effect between a two-band superconductor with the s++ or s+- pairing symmetry and a conventional s-wave superconductor
• Crystal Chemistry and Structural Design of Iron-Based Superconductors
• The effect of As-Chain layers in CaFeAs${}_2$
• Collective modes in superconductors with competing s- and d-wave interactions
• Superconductivity mediated by quantum critical antiferromagnetic fluctuations: The rise and fall of hot spots
• Two-gap superconductivity with line nodes in CsCa${}_2$Fe${}_4$As${}_4$F${}_2$
• Band-structure effects on superconductivity in Hubbard models
• Universal V-shaped temperature-pressure phase diagram in the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2
• Spontaneous currents in a superconductor with s+is symmetry
• Impurities in multiband superconductors
• Shadow gap in the over-doped (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ compound
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• Impurity states and cooperative magnetic order in Fe-based superconductors
• Superconducting gap with sign reversal between hole pockets in heavily hole-doped Ba1-xKxFe2As2
• Ground state, collective mode, phase soliton and vortex in multiband superconductors
• How many quantum phase transitions exist inside the superconducting dome of the iron pnictides?
• Discovery of a strain-stabilised smectic electronic order in LiFeAs
• Prominent role of spin-orbit coupling in FeSe
• Metamorphoses of electronic structure of FeSe-based superconductors (Review article)
• Testing the Monte Carlo - Mean Field approximation in the one-band Hubbard model
• Pairing Mechanism in Hunds Metal Superconductors and the Universality of the Superconducting Gap to Critical Temperature Ratio
• Unexpected impact of magnetic disorder on multiband superconductivity
• Ab initio theory of plasmonic superconductivity within the Eliashberg and density-functional formalisms
• Magnetic properties and pairing tendencies of the iron-based superconducting ladder BaFe${}_2$S${}_3$: combined ab initio and density matrix renormalization group study
• Spatial Inhomogeneity of the Superconducting Gap and Order Parameter in FeSe_{0.4}Te_{0.6}
• Nodeless superconductivity in Ca3Ir4Sn13: evidence from quasiparticle heat transport
• Field dependence of the vortex core size probed by STM
• Identifying the `Fingerprint' of Antiferromagnetic Spin-Fluctuations on Iron-Pnictide Superconductivity
• Evidence of Nodal Line in the Superconducting Gap Symmetry of Noncentrosymmetric ThCoC${}_2$
• s+is superconductivity with incipient bands: doping dependence and STM signatures
• Edge-Corner Correspondence: Boundary-Obstructed Topological Phases with Chiral Symmetry
• Effects of electron irradiation on resistivity and London penetration depth of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ ($x\le$ 0.34) iron - pnictide superconductor
• Evidence of d-wave Superconductivity in K_(1-x)Na_xFe_2As_2 (x = 0, 0.1) Single Crystals from Low-Temperature Specific Heat Measurements
• Spin fluctuations and superconductivity in KxFe{2-y}Se2
• Unveiling the hidden nematicity and spin subsystem in FeSe
• Doping - dependent superconducting gap anisotropy in the two-dimensional 10-3-8 pnictide Ca${}_{10}$(Pt${}_3$As${}_8$)[(Fe${}_{1-x}$Pt${}_x$)${}_2$As${}_2$]${}_5$
• ARPES measurements of the superconducting gap of Fe-based superconductors and their implications to the pairing mechanism
• Designing phase-sensitive tests for Fe-based superconductors
• Dichotomy between in-plane magnetic susceptibility and resistivity anisotropies in extremely strained $BaF{e}_{2}A{s}_2$
• Orbital selective spin excitations and their impact on superconductivity of LiFe1-xCoxAs
• Aspects of electron-phonon interactions with strong forward scattering in FeSe Thin Films on SrTiO${}_3$ substrates
• Nodal Superconducting Gap in $\beta$-FeS
• Vortex-line topology in iron-based superconductors with and without second-order topology
• Entangled Orbital Triplet Pairs in Iron-Based Superconductors
• Using electron irradiation to probe iron - based superconductors
• Robust Upward Dispersion of the Neutron Spin Resonance in the Heavy Fermion Superconductor Ce${}_{1-x}$Yb${}_x$CoIn${}_5$
• Ab initio downfolding study of the iron-based ladder superconductor BaFe${}_2$S${}_3$
• Manipulation of gap nodes by uniaxial strain in iron-based superconductors
• Theory of Strain-Induced Magnetic Order and Splitting of $T_c$ and $T_{\mathrm{TRSB}}$ in Sr${}_2$RuO${}_4$
• Pairing instability near a lattice-influenced nematic quantum critical point
• Spectroscopic Evidence of Bilayer Splitting and Interlayer Pairing in an Iron Based Superconductor
• Local characterization of superconductivity in BaFe2(As1-xPx)2
• Magic angles and correlations in twisted nodal superconductors
• Impurity-Induced Electronic Nematic State in Iron-Pnictide Superconductors
• s${}_{\pm }$ pairing near a Lifshitz transition
• Nodal gaps in the nematic superconductor FeSe from heat capacity
• Gap Symmetry and Stability Analysis in the Multi-Orbital Fe-Based Superconductors
• Heat transport in RbFe2As2 single crystal: evidence for nodal superconducting gap
• Influence of Spin Orbit Coupling in the Iron-Based Superconductors
• Proximity to Fermi-surface topological change in superconducting LaO0.54F0.46BiS2
• Odd parity pairing and nodeless anti-phase $s^{\pm }$ in Iron-Based Superconductors
• Manifestation of impurity induced s_{+-} -> s_{++} transition: multiband model for dynamical response functions
• Phonon mediated superconductivity in low carrier-density systems
• Overview on the physics and materials of the new superconductor KxFe2-ySe2
• Competing pairing interactions responsible for the large upper critical field in a stoichiometric iron-based superconductor, CaKFe${}_4$As${}_4$
• Electronic tuning and uniform superconductivity in CeCoIn5
• Observation of discrete conventional Caroli-de Gennes-Matricon states in the vortex core of single-layer FeSe/SrTiO3
• Hydrostatic and uniaxial pressure tuning of iron-based superconductors: Insights into superconductivity, magnetism, nematicity and collapsed tetragonal transitions
• What is the minimal model of magnetic interactions in Fe-based superconductors?
• Correlation-enhanced odd-parity inter-orbital singlet pairing in the iron-pnictide superconductor LiFeAs
• Anomalous superfluid density in quantum critical superconductors
• Tracing the $s_{\pm }$-symmetry in iron pnictides by controlled disorder
• Evidence for short-range magnetic order in the nematic phase of FeSe from anisotropic in-plane magnetostriction and susceptibility measurements
• Contrasts in electron correlations and inelastic scattering between LiFeAs and LiFeP revealed by charge transport
• Topological Superconductivity in an s-wave Superconductor and Its Implication to Iron-based Superconductors
• Wide applicability of high $T_c$ pairing originating from coexisting wide and incipient narrow bands in quasi one dimension
• A brief review on muSR studies of unconventional Fe and Cr-based superconductors
• Strong and nonmonotonic temperature dependence of Hall coefficient in superconducting K${}_x$Fe${}_{2-y}$Se${}_2$ single crystals
• Finite-frequency spin susceptibility and spin pumping in superconductors with spin-orbit relaxation
• Theory of nonequilibrium dynamics of multiband superconductors
• Intrinsic first and higher-order topological superconductivity in a doped topological insulator
• Neutron-scattering measurements of the spin excitations in LaFeAsO and Ba(Fe${}_{0.953}$Co${}_{0.047}$)${}_2$As${}_2$: Evidence for a sharp enhancement of spin fluctuations by nematic order
• Many-body effects on superconductivity mediated by double-magnon processes in altermagnets
• Zero-bias conductance peak in detached flakes of superconducting 2H-TaS${}_2$ probed by scanning tunneling spectroscopy
• Schwinger boson spin liquid states on square lattice
• Electronic structure of FeSe monolayer superconductors
• Coexistence of ferromagnetic and stripe antiferromagnetic spin fluctuations in SrCo${}_2$As${}_2$
• Novel three-dimensional Fermi surface and electron-correlation-induced charge density wave in FeGe
• Evidence for d-wave superconductivity in single layer FeSe/SrTiO3 probed by quasiparticle scattering off step edges
• Effect of Li-deficiency impurities on the electron-overdoped LiFeAs superconductor
• The $s^{\pm }$-Wave Superconductivity in the Pressurized La${}_4$Ni${}_3$O${}_{10}$
• Nodeless superconductivity in the presence of spin-density wave in pnictide superconductors: The case of BaFe${}_{2-x}$Ni${}_x$As${}_2$
• Crossover in the magnetic response of single-crystalline Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ and Lifshitz critical point evidenced by Hall effect measurements
• Superconductivity near a ferroelectric quantum critical point in ultralow-density Dirac materials
• Spin Waves in Detwinned BaFe${}_2$As${}_2$
• Specific Heat Discontinuity DeltaC vs Tc in Annealed Ba(Fe1-xCox)2As2
• The magnetic moment enigma in Fe-based high temperature superconductors
• Theory of quasiparticle vortex bound states in Fe-based superconductors: application to LiFeAs
• Structural origin of the anomalous temperature dependence of the local magnetic moments in the CaFe${}_2$As${}_2$ family of materials
• Magnetism in parent Fe-chalcogenides: quantum fluctuations select a plaquette order
• Pairing Tendencies in a Two-orbital Hubbard Model in One Dimension
• Nematicity driven by hybridization in iron-based superconductors
• High-$T_c$ Superconductor Fe(Se,Te) Monolayer: an Intrinsic, Scalable and Electrically-tunable Majorana Platform
• Origin of the superconducting state in the collapsed tetragonal phase of KFe2As2
• When superconductivity does not fear magnetism: Insight into electronic structure of RbEuFe${}_4$As${}_4$
• Revisit of the Orbital-Fluctuation-Mediated Superconductivity in LiFeAs: Nontrivial Spin-Orbit Interaction Effects on the Bandstructure and Superconducting Gap Function
• Anisotropic neutron spin resonance in underdoped superconducting NaFe1-xCoxAs
• Incommensurate magnetic fluctuations and Fermi surface topology in LiFeAs
• Competing Vortex Topologies in Iron-based Superconductors
• Strong-Coupling Superconductivity in NaFe${}_{1-x}$Co${}_x$As: the Eliashberg Theory and Beyond
• Analysis of the London penetration depth in Ni-doped CaKFe4As4
• Complex state induced by impurities in multiband superconductors
• Spin reorientation and Ce-Mn coupling in antiferromagnetic oxypnictide CeMnAsO
• Fermi surface reconstruction in (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (0.44 $\le x\le$ 1) probed by thermoelectric power measurements
• Volovik effect in a highly anisotropic multiband superconductor: experiment and theory
• Nodal gap in iron-based superconductor CsFe${}_2$As${}_2$ probed by quasiparticle heat transport
• Superconducting mechanism for the cuprate Ba${}_2$CuO${}_{3+\delta }$ based on a multiorbital Lieb lattice model
• Universality of dispersive spin-resonance mode in superconducting BaFe2As2
• Evidence for two energy gaps and Fermi liquid behavior in SrPt${}_2$As${}_2$ superconductor
• p-Wave Superconductivity in Iron-based Superconductors
• Two distinct superconducting states controlled by orientation of local wrinkles in LiFeAs
• Weak-Coupling Theory of Pair Density-Wave Instabilities in Transition Metal Dichalcogenides
• Fermi surface topology of LaFePO and LiFeP
• Influence of $s_{\pm }$ symmetry on unconventional superconductivity in pnictides above the Pauli limit -- two-band model study
• Two distinct superconducting states in KFe${}_2$As${}_2$ under high pressure
• Collective modes in multiband superconductors: Raman scattering in iron selenides
• Strongly enhanced superconductivity due to finite energy spin fluctuations induced by an incipient band : a FLEX study on the bilayer Hubbard model with vertical and diagonal interlayer hoppings
• Phase-sensitive evidence for the sign-reversal s+- symmetry of the order parameter in an iron-pnictide superconductor using Nb/Ba1-xNaxFe2As2 Josephson junctions
• Properties of dirty two-bands superconductors with repulsive interband interaction: normal modes, length scales, vortices and magnetic response
• A Holographic Model of Two-Band Superconductor
• Competition between superconductivity and magnetic/nematic order as a source of anisotropic superconducting gap in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Anomalous impurity effects in the iron-based superconductor KFe${}_2$As${}_2$
• Iron telluride ladder compounds: Predicting the structural and magnetic properties of BaFe${}_2$Te${}_3$
• An extensive impurity-scattering study on the pairing symmetry of monolayer FeSe films on SrTiO3
• Microwave Surface Impedance Measurements of the Electronic State and Dissipation of Magnetic Vortices in Superconducting Iron-Based LiFeAs Single Crystals
• Nodal superconductivity and superconducting dome in new layered superconductor Ta4Pd3Te16
• Hedgehog Spin-vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR
• Spin-Orbital-Intertwined Nematic State in FeSe
• Single particle tunneling spectroscopy and superconducting gaps in layered iron based superconductor KCa${}_2$Fe${}_4$As${}_4$F${}_2$
• Effects of disordered Ru substitution in BaFe${}_2$As${}_2$: Realization of superdiffusion mechanism in real materials
• Temperature dependence of the paramagnetic spin excitations in BaFe${}_2$As${}_2$
• The electron-phonon interaction with forward scattering peak is a relevant approach to high Tc superconductivity in FeSe films on SrTiO3 and TiO2
• Harmonic Fingerprint of Unconventional Superconductivity in Twisted Bilayer Graphene
• Quantum phase transition of correlated iron-based superconductivity in LiFe${}_{1-x}$Co${}_x$As
• Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFe${}_{2-x}{T}_x$As${}_2$ ($T=$Co, Ni)
• Possible high-$T_c$ superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds
• Density matrix renormalization group study of a three-orbital Hubbard model with spin-orbit coupling in one dimension
• Signature of multigap nodeless superconductivity in fluorine-doped NdFeAsO
• Effective interactions in multi-band systems from constrained summations
• Dynamics of Order Parameters near Stationary States in Superconductors with a Charge-Density Wave
• Anomalous proximity effects at the interface of s and s+- superconductors
• The three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned ARPES measurements
• The ab initio study of unconventional superconductivity in CeCoIn${}_5$ and FeSe
• Mechanism for unconventional superconductivity in the hole-doped Rashba-Hubbard model
• Evolution of Superconducting Gaps in Th-Substituted Sm${}_{1-x}$Th${}_x$OFeAs Studied by Multiple Andreev Reflection Spectroscopy
• Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again
• Accurate bare susceptibilities from full-potential $\text{ab initio}$ calculations
• Non-local $d_{xy}$ nematicity and the missing electron pocket in FeSe
• Effect of realistic finite-size impurities on Tc in Fe-based superconductors based on the five-orbital tight-binding model
• Pair breaking due to orbital magnetism in iron-based superconductors
• Spin excitations in optimally P-doped BaFe2(As0.7P0.3)2superconductor
• Surface transport properties of Fe-based superconductors: The influence of degradation and inhomogeneity
• Emergent magnetic degeneracy in iron pnictides due to the interplay between spin-orbit coupling and quantum fluctuations
• Evidence for unconventional superconductivity in Half-Heusler YPdBi and TbPdBi compounds revealed by London penetration depth measurements
• Spin-fluctuations in Ti${}_{60}$V${}_{40}$ alloy and its influence on the superconductivity
• Spin excitations in layered antiferromagnetic metals and superconductors
• Superconductivity Mediated by Nematic Fluctuations in Tetragonal $\text{Fe}{\text{Se}}_{1-x}{\text{S}}_x$
• Mechanism for nematic superconductivity in FeSe
• Inter-plane resistivity of isovalent doped BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Pairing Mechanism of the Heavily Electron Doped FeSe Systems: Dynamical Tuning of the Pairing Cutoff Energy
• Transition from sign-reversed to sign-preserved Cooper-pairing symmetry in sulfur-doped iron selenide superconductors
• Vertical loop nodes in iron-based superconductors
• Non-Fermi-Liquid Transport Phenomena and Superconductivity Driven by Orbital Fluctuations in Iron Pnictides: Analysis by Fluctuation-Exchange Approximation
• Many-variable variational Monte-Carlo study of superconductivity in two-band Hubbard models with an incipient band
• Impact of local-moment fluctuations on the magnetic degeneracy of iron arsenide superconductors
• Vector field controlled vortex lattice symmetry in LiFeAs
• Holographic model of the S^{+/-} multiband superconductor
• Multiple-q current states in a multicomponent superconducting channel
• Superconducting properties of Ba(Fe1-xNix)2As2 thin films in high magnetic fields
• Electronic structure of NaFeAs superconductor: LDA+DMFT calculations compared with ARPES experiment
• Electronic structure of FeSe monolayer superconductors: shallow bands and correlations
• Emergent vortex Majorana zero mode in iron-based superconductors
• Twisted multilayer nodal superconductors
• Superconductivity in 122-type antimonide BaPt${}_2$Sb${}_2$
• Electronic structure of Ni-doped EuRbFe${}_4$As${}_4$: Unique crystal field splitting and multiband RKKY interactions
• Zn-impurity effect and interplay of $s_{\pm }$- and $s_{++}$-pairings in Fe-based superconductors
• Spin fluctuations away from (pi,0) in the superconducting phase of molecular-intercalated FeSe
• Magnetic penetration depth in disordered iron-based superconductors
• Superconducting pairing in the spin-density-wave phase of iron pnictides
• Comparative study of the effects of electron irradiation and natural disorder in single crystals of SrFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ ($x=$0.35) superconductor
• Novel Fe-based superconductor LaFe2As2 in comparison with traditional pnictides
• Electronic structure and de Haas-van Alphen frequencies in KFe2As2 within LDA+DMFT
• Electron doping evolution of the magnetic excitations in NaFe${}_{1-x}$Co${}_x$As
• Electronic structure, magnetism and high-temperature superconductivity in the multi-layer octagraphene and octagraphite
• Sublattice modulated superconductivity in the Kagome Hubbard model
• Temperature-induced band selective localization and coherent-incoherent crossover in single-layer FeSe/Nb:BaTiO3 /KTaO3
• Effect of Ru susbstitution on atomic displacements in the layered SmFe_{1-x}Ru_xAsO_{0.85}F_{0.15} superconductor
• Interplay between superconductivity and itinerant magnetism in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ ($x=$ 0.2) probed by the response to controlled point-like disorder
• Impurity-induced bound states inside the superconducting gap of FeSe
• Evolution from $B_{2g}$ nematics to $B_{1g}$ nematics in heavily hole-doped iron-based superconductors
• Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
• Electronic structure of iron-based superconductors: from pnictides to chalcogenides and other similar systems
• Doping - dependent anisotropic superconducting gap in Na${}_{1-\delta }$(Fe${}_{1-x}$Co${}_x$)As
• Multi-gap nodeless superconductivity in nickel chalcogenide TlNi2Se2
• Anomalous thermodynamic power laws near topological transitions in nodal superconductors
• Phase diagram of dirty two-band superconductors and observability of impurity-induced $s+is$ state
• Spin resonance peak in Fe-based superconductors with unequal gaps
• Lattice distortion induced first and second order topological phase transition in rectangular high-T${}_{\mathrm{c}}$ superconducting monolayer
• Exceptional Suppression of Flux-Flow Resistivity in FeSe${}_{0.4}$Te${}_{0.6}$ by Back-Flow from Excess Fe Atoms and Se/Te Substitutions
• Classification of ground states and normal modes for phase-frustrated multicomponent superconductors
• Effect of gap anisotropy on the spin resonance peak in the superconducting state of iron-based materials
• Doping and critical-temperature dependence of the energy gaps in Ba(Fe_{1-x}Co_x)_2As_2 thin films
• Orbital-selective Mott phases of a one-dimensional three-orbital Hubbard model studied using computational techniques
• Disorder effects in multiorbital $s_{\pm }$-wave superconductors: Implications for Zn-doped BaFe${}_2$As${}_2$ compounds
• Anisotropic upper critical field of pristine and proton-irradiated single crystals of the magnetically ordered superconductor RbEuFe${}_4$As${}_4$
• Glide-Plane Symmetry and Superconducting Gap Structure of Iron-Based Superconductors
• Magneto-topological transitions in multicomponent superconductors
• Magnetism and superconductivity in the layered hexagonal transition metal pnictides
• Probing the superconducting ground state of ZrIrSi: A $\mu$SR study
• First-principles evidence of Mn moment canting in hole-doped Ba${}_{1-2x}$K${}_{2x}$Mn${}_2$As${}_2$
• Impact of topology on the impurity effects in extended $s$-wave superconductors with spin-orbit coupling
• Displacement and annihilation of Dirac gap-nodes in d-wave iron-based superconductors
• Direct visualization of sign reversal s^+- superconducting gaps in FeTe0.55Se0.45
• Two-Particle Self-Consistent method for the multi-orbital Hubbard model
• Nodeless superconductivity in Ir${}_{1-x}$Pt${}_x$Te${}_2$ with strong spin-orbital coupling
• Ab-initio perspective on structural and electronic properties of iron-based superconductors
• Order parameter fluctuation and ordering competition in $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{K}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• Multiband strong-coupling superconductors with spontaneously broken time-reversal symmetry
• Anharmonic theory of superconductivity and its applications to emerging quantum materials
• Dirac-Fermion-Assisted Interfacial Superconductivity in Epitaxial Topological Insulator/Iron Chalcogenide Heterostructures
• Designing nickelate superconductors with $d^8$ configuration exploiting mixed-anion strategy
• Improper s-wave symmetry for the electronic pairing in iron-based superconductors by first-principles calculation
• Nodal superconductivity in isovalently substituted SrFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ pnictide superconductor at the optimal doping, $x=$0.35
• Orbital-selective spin waves in detwinned NaFeAs
• Intertwined spin-orbital coupled orders in the iron-based superconductors
• Functional renormalization group study of an eight-band model for the iron arsenides
• Fermi-surface topological phase transition and horizontal order-parameter nodes in CaFe${}_2$As${}_2$ under pressure
• Coulomb-induced instabilities of nodal surfaces
• Phonon Boost Effect on the $S^{\pm }$-wave Superconductor with Incipient Band
• Direct visualization of phase separation between superconducting and nematic domains in Co-doped CaFe2As2 close to a first order phase transition
• Evolution of the neutron resonances in AFe2Se2
• Magnetic excitations and amplitude fluctuations in insulating cuprates
• Simulating a two-dimensional frustrated spin system with fermionic resonating-valence-bond states
• On the origin of the shallow and "replica" bands in FeSe monolayer superconductors
• Strong coupling superconductivity revealed by scanning tunneling microscope in tetragonal FeS
• Interband coupling and transport interband scattering in $s_{\pm }$ superconductors
• Possible unconventional superconductivity in substituted BaFe${}_2$As${}_2$ revealed by magnetic pair-breaking studies
• Effects of isoelectronic Ru substitution at the Fe site on the energy gaps of optimally F-doped SmFeAsO
• Effect of nonmagnetic impurities on $s_{\pm }$ superconductivity in the presence of incipient bands
• Progress in nonmagnetic impurity doping studies on Fe-based superconductors
• London penetration depth measurements using tunnel diode resonators
• Iron-based superconductors: tales from the nuclei
• Phase diagram of Josephson junction between s and s+- superconductors in dirty limit
• High-pressure effects on isotropic superconductivity in the iron-free layered pnictide superconductor BaPd2As2
• Superconductivity in the parent infinite-layer nickelate NdNiO${}_2$
• Spin fluctuation anisotropy as a probe of orbital-selective hole-electron quasiparticle excitations in detwinned Ba(Fe1-xCox)2As2
• Synthesis, phase stability, structural and physical properties of 11-type iron chalcogenides
• Magnetic order tuned by Cu substitution in Fe1.1-zCuzTe
• Doping effect of Cu and Ni impurities on the Fe-based superconductor Ba0.6K0.4Fe2As2
• Effect of weak disorder on the phase competition in iron pnictides
• Inter-layer Superconducting Pairing Induced c-axis Nodal Lines in Iron-based Superconductors
• Frustrated Magnetism from Local Moments in FeSe
• Phase stability and large in-plane resistivity in the 112-type iron-based superconductor Ca${}_{1-x}$La${}_x$FeAs${}_2$
• Ground state pairing correlations in the $S_4$ symmetric microscopic model for iron-based superconductors
• Odd-frequency pair density wave correlations in underdoped cuprates
• Charge order driven by multiple-Q spin fluctuations in heavily electron-doped iron selenide superconductors
• A High-Tc Mechanism of Iron Pnictide Superconductivity due to Cooperation of Ferro-orbital and Antiferromagnetic Fluctuations
• Universal scaling behavior of the upper critical field in strained FeSe0.7Te0.3 thin films
• Intertwined magnetic and nematic orders in semiconducting KFe${}_{0.8}$Ag${}_{1.2}$Te${}_2$
• Electronic structures of doped BaFe${}_2$As${}_2$ materials: virtual crystal approximation versus super-cell approach
• Spin excitation anisotropy in optimal-isovalent-doped superconductor BaFe2(As0.7P0.3)2
• Realization of continuously electron doping in bulk iron selenides and identification of a new superconducting zone
• Role of Magnetism in Superconductivity of BaFe2As2: Study of 5d Au-doped Crystals
• Emergent Tetragonality in a Fundamentally Orthorhombic Material
• Spin resonance in AFe2Se2 with s-wave pairing symmetry
• Transition-Metal Substitutions in Iron Chalcogenides
• Projection of Infinite-$U$ Hubbard Model and Algebraic Sign Structure
• Electron doping evolution of the neutron spin resonance in NaFe${}_{1-x}$Co${}_x$As
• Non-trivial role of interlayer cation states in iron-based superconductors
• Thermodynamic signatures of an antiferromagnetic quantum critical point inside a superconducting dome
• Influence of the Fermi surface geometry on a Josephson effect between an iron-pnictide and conventional superconductors
• Origin of doping-induced suppression and reemergence of magnetism in LaFeAsO${}_{1-x}$H${}_x$
• Suppression of low-energy longitudinal spin-excitations in Co-underdoped BaFe2As2
• Phase diagram of doped BaFe${}_2$As${}_2$ superconductor under broken $C_4$ symmetry
• Neutron spin resonance as a probe of Fermi surface nesting and superconducting gap symmetry in Ba${}_{0.67}$K${}_{0.33}$(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Controlling unconventional superconductivity in artificially engineered $f$-electron Kondo superlattices
• Checkerboard-type patterns of charge stripes in two-gap superconductor ZrB12
• Superfluid, staggered state, and Mott insulator of repulsively interacting three-component fermionic atoms in optical lattices
• Localization and Orbital Selectivity in Iron-Based Superconductors with Cu Substitution
• Structural, electronic, and dynamical properties of the tetragonal and collapsed tetragonal phases of KFe${}_2$As${}_2$
• Effect of heavy-ion irradiation on London penetration depth in over-doped Ba(Fe,Co)2As2
• Multiple phase transitions in Pauli limited iron-based superconductors
• Antiferromagnetism in Iron-Based Superconductors: Selection of Magnetic Order and Quasiparticle Interference
• Orbital superconductivity, defects and pinned nematic fluctuations in the doped iron chalcogenide FeSe${}_{0.45}$Te${}_{0.55}$
• Neutron Scattering Study on Spin Dynamics in Superconducting (Tl,Rb)2Fe4Se5
• Observation of a neutron spin resonance in the bilayered superconductor CsCa2Fe4As4F2
• Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors
• Disentangling superconducting and magnetic orders in NaFe_1-xNi_xAs using muon spin rotation
• Realization of the $\pi$-state in junctions formed by multi-band superconductors with a spin-density-wave
• Dimensionality, nematicity and Superconductivity in Fe-based systems
• Multiband superconductivity in Ta${}_4$Pd${}_3$Te${}_{16}$ with anisotropic gap structure
• Superconductivity of underdoped PrFeAs(O,F) investigated via point-contact spectroscopy and nuclear magnetic resonance
• TAO pairing: a fully gapped pairing scenario for the Iron-Based Superconductors
• Real-space multiple scattering theory for superconductors with impurities
• Elementary Excitations due to Orbital Degrees of Freedom in Iron Based Superconductors
• Electronic Phase Diagram of SrFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$: Effect of Structural Dimensionality
• Anomalous density of states in multiband superconductors near Lifshitz transition
• Superconductivity in multiorbital systems with repulsive interactions: Hund's pairing vs. spin-fluctuation pairing
• ARPES Detection of Superconducting Gap Sign in Unconventional Superconductors
• Constrained weak-coupling superconductivity in multiband superconductors
• Electronic structure in one-Fe Brillouin zone of iron-pnictide superconductor CsFe${}_2$As${}_2$
• Breakdown of single spin-fluid model in heavily hole-doped superconductor CsFe2As2
• Vortex in holographic two-band superfluid/superconductor
• Phonon-mediated spin-polarized superconductivity in altermagnets
• Unusual Sensitivity of Superconductivity to Strain in Iron-Based 122 Superconductors
• Intra-unit-cell singlet pairing mediated by altermagnetic fluctuations
• Observation of a Hidden Hole-Like Band Approaching the Fermi Level in K-Doped Iron Selenide Superconductor
• Evidence of a full gap in LaFeAsO${}_{1-x}$F${}_x$ thin films from infrared spectroscopy
• Fluctuations in two-band superconductors in a strong magnetic field
• The Coulomb problem in iron based superconductors
• Robustness of quantum critical pairing against disorder
• Probing the Order Parameter of Superconducting LiFeAs using Pb/LiFeAs and Au/LiFeAs Point-Contact Spectroscopy
• Fluctuations and pairing in Fe-based superconductors: Light scattering experiments
• Electronic properties of the FeSe/STO interface from first-principle calculations
• Hidden Order as a Source of Interface Superconductivity
• Multi-band description of the upper critical field of bulk FeSe
• Renormalization group analysis for the quasi-1D superconductor BaFe${}_2$S${}_3$
• Strong Spin Resonance Mode associated with suppression of soft magnetic ordering in Hole-doped Ba1-xNaxFe2As2
• Possible Bicollinear Nematic State with Monoclinic Lattice Distortions in Iron Telluride Compounds
• Hidden robust presence of a hole Fermi surface in a heavily electron doped iron based superconductor LaFe${}_2$As${}_2$
• Physics picture from neutron scattering study on Fe-based superconductors
• Possible counterintuitive enhancement of superconductivity in ladder-type cuprates by longitudinal compression
• Phase diagram and neutron spin resonance of superconducting NaFe${}_{1-x}$Cu${}_x$As
• Magnetic field dependence of the neutron spin resonance in CeB6
• Doping evolution of the superconducting gap structure in heavily hole-doped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$: heat transport study
• Superconducting gap structure of the 115's revisited
• Nesting Induced Large Magnetoelasticity in the Iron Arsenide Systems
• Impact of ordering competition on the global phase diagram of iron pnictides
• Competition of spatially inhomogeneous states in antiferromagnetic Hubbard model
• Electronic structure, lattice dynamics and magnetism of new ThXAsN (X=Fe,Co,Ni) superconductors: A First Principles Study
• Unparticle mediated superconductivity
• Thermodynamic evidence for broken fourfold rotational symmetry in the hidden-order phase of URu2Si2
• Details of the disorder-induced transition between $s_{\pm }$ and $s_{++}$ states in two-band model for Fe-based superconductors
• Neutron diffraction study on magnetic structures and transitions in Sr2Cr3As2O2
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Evidence of nodal superconductivity in LaFeSiH
• Thermoelectric power of Ba(Fe1-xCox)2As2, 0\leqx\leq0.05, and Ba(Fe1-xRhx)2As2, (0\leqx\leq0.171)
• Topological Defects in Systems with Two Competing Order Parameters: Application to Superconductors with Charge- and Spin-Density Waves
• Multiband thermal transport in the iron-based superconductor Ba1 xKxFe2As2
• Doping effects of Cr on the physical properties of BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Preliminary Tc calculations for iron-based superconductivity in NaFeAs, LiFeAs, FeSe and nanostructured FeSe/SrTiO3 Superconductors
• Effect of disorder on the competition between nematic and superconducting order in FeSe
• Superconducting Order Parameter and Bosonic Mode in Hydrogen-Substituted NdFeAsO${}_{0.6}$H${}_{0.36}$ Revealed by Multiple Andreev Reflection Spectroscopy
• The collapsed tetragonal phase as a strongly covalent and fully nonmagnetic state: persistent magnetism with interlayer As-As bond formation in Rh-doped Ca${}_{0.8}$Sr${}_{0.2}$Fe${}_2$As${}_2$
• Observation of the Non-linear Meissner Effect
• Temperature-dependent $s_{\pm }\leftrightarrow s_{++}$ transitions in the multiband model for Fe-based superconductors with impurities
• A phenomenological multiband Eliashberg model for LiFeAs
• Transmittance and reflectance measurements at terahertz frequencies on a superconducting BaFe_{1.84}Co_{0.16}As_2 ultrathin film: an analysis of the optical gaps in the Co-doped BaFe_2As_2 pnictide
• Orbital-selective coherence-incoherence crossover and metal-insulator transition in Cu-doped NaFeAs
• Searching for Majorana quasiparticles at vortex cores in iron-based superconductors
• Inhomogeneous superconductivity in LuxZr1-xB12 dodecaborides with dynamic charge stripes
• Evidence for nodeless superconducting gap in NaFe${}_{1-x}$Co${}_x$As from low-temperature thermal conductivity measurements
• Quasiparticle Interference and Symmetry of Superconducting Order Parameter in Strongly Electron-Doped Iron-based Superconductors
• Anisotropic effect of a magnetic field on the neutron spin resonance in FeSe
• Multiband effects on the upper critical field angular dependence of 122-family iron pnictide superconductors
• Electronic Physics and Possible Superconductivity in Layered Orthorhombic Cobalt Oxychalcogenides
• Charge doping versus impurity scattering in chemically substituted iron-pnictides
• Robustness of superconductivity to structural disorder in Sr${}_{0.3}$(NH${}_2$)${}_y$(NH${}_3$)${}_{1-y}$Fe${}_2$Se${}_2$
• Carrier localization due to local magnetic order induced by magnetic impurities in Ba(Fe${}_{1-x}$TM${}_x$)${}_2$As${}_2$ (TM = Mn and Cr) as seen via optical spectra
• Isotropic Quenched Disorder Triggers a Robust Nematic State in Electron-Doped Pnictides
• Quasiparticle Interference in Fe-based Superconductors Based on a Five-Orbital Tight-Binding Model
• Impurity effect and suppression to superconductivity in Na(Fe${}_{0.97-x}$Co${}_{0.03}$T${}_x$)As (T=Cu, Mn)
• Pseudogap and Strong Pairing Induced by Incipient and Shallow Bands in the Quasi-Two-Dimensional KCa${}_2$Fe${}_4$As${}_4$F${}_2$
• Orbital selective neutron spin resonance in underdoped superconducting NaFe${}_{\text{0.985}}$Co${}_{\text{0.015}}$As
• Discovery of Orbital Ordering in Bi2Sr2CaCu2O8+x
• Role of the Extra-Fe in K2-xFe4+ySe5 superconductors
• Time-reversal symmetry breaking state in dirty three-band superconductor
• Superconducting gap symmetry in BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$ superconductor
• Two-Fluid Description for Iron-Based Superconductors
• Opening of the superconducting gap in the hole pockets of Ba(Fe(1-x)Co(x))2As2 as seen via Angle-Resolved PhotoElectron Spectroscopy
• Role of magnetic dopants in the phase diagram of Sm1111 pnictides: The Mn case
• THz electrodynamics of BaFe${}_{1.91}$Ni${}_{0.09}$As${}_2$ film analyzed in the framework of multiband Eliashberg theory
• Spectroscopic studies of the superconducting gap in the 12442 family of iron-based compounds
• Dispersionless orbital excitations in (Li,Fe)OHFeSe superconductors
• Genuine Electronic Structure and Superconducting Gap Structure in (Ba${}_{0.6}$K${}_{0.4}$)Fe${}_2$As${}_2$ Superconductor
• Dynamical spin susceptibility of spin-valley half-metal
• Magnetic and superconducting anisotropy in Ni-doped RbEuFe${}_4$As${}_4$ single crystals
• Role of Fermi surface for the pressure-tuned nematic transition in the BaFe${}_2$As${}_2$ family
• Selective mass enhancement close to the quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Electronic and Magnetic Properties of the New Iron -- Based Superconductor [Li${}_{1-x}$Fe${}_x$OH]FeSe
• Superconductivity-induced Phonon Renormalization on NaFe${}_{1-x}$Co${}_x$As
• Parallel suppression of superconductivity and Fe moment in the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 under pressure
• Interplay of superconductivity and magnetism in FeSe${}_{1-x}$Te${}_x$ compounds. Pressure effects
• Why MgFeGe is not a superconductor
• Electronic structure and quantum criticality in Ba(Fe${}_{1-x-y}$Co${}_x$Mn${}_y$)${}_2$As${}_2$, an ARPES study
• Orbitally resolved lifetimes in Ba(Fe0.92Co0.08)2As2 measured by ARPES
• Superconductivity governed by Janus-faced fermiology in strained bilayer nickelates
• Electronic origin of structural transition in 122 Fe based superconductors
• Orbital Selective Directional Conductor in the Two Orbital Hubbard Model
• Are there nodes in LaFePO, BaFe${}_2$(AsP)${}_2$, and KFe${}_2$As${}_2$ ?
• Two-Gap Superconductivity in CaFe_{0.88}Co_{0.12}AsF Revealed by Temperature Dependence of the Lower Critical Field H_{c1}^c(T)
• Multiple Superconducting Gaps, Anisotropic Spin Fluctuations and Spin-Orbit Coupling in Iron-Pnictides
• The effect of spin fluctuations on the electronic structure in iron based superconductors
• Excitonic Order and Superconductivity in the Two-Orbital Hubbard Model: Variational Cluster Approach
• Itinerant scenario for Fe-pnictides: comparison with quantum Monte Carlo
• Emergence of Superconductivity from Fully Incoherent Normal State in an Iron-Based Superconductor (Ba${}_{0.6}$K${}_{0.4}$)Fe${}_2$As${}_2$
• Theoretical study of spin-fluctuation-mediated superconductivity in two-dimensional Hubbard models with an incipient flat band
• Doping Dependence of Correlation Effects in K{1-x}Fe{2-y}Se2 Superconductor: LDA'+DMFT Investigation
• Effectof biquadratic exchange on the phase diagram of a spin-1 transverse XY modelwith single-ion anisotropy
• Comparative Study of Electronic structure of New Superconductors (Sr,Ca)Pd2As2 and related compound BaPd2As2
• Intertwined charge, spin, and pairing orders in doped iron ladders
• Topological surface states and Andreev bound states in superconducting iron pnictides
• Strong Landau-quantization effects in high-magnetic-field superconductivity of a two-dimensional multiple-band metal near the Lifshitz transition
• Orbital Selective Phase Transition
• Superconducting gap evolution in overdoped BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ single crystals through nanocalorimetry
• Friedel oscillations and chiral superconductivity in monolayer NbSe${}_2$
• Hybrid s-wave superconductivity in CrB${}_2$
• Evolution of quasiparticle states with and without a Zn-impurity in doped 122 iron pnictides
• Effect of controlled artificial disorder on the magnetic properties of EuFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ ferromagnetic superconductor
• Unusual suppression of a spin resonance mode with magnetic field in underdoped NaFe${}_{1-x}$Co${}_x$As: Evidence for orbital-selective pairing
• Neutron spin resonance as a probe of superconducting gap anisotropy in partially detwinned electron underdoped NaFe${}_{0.985}$Co${}_{0.015}$As
• Doping effects on electronic states in electron-doped FeSe: Impact of self-energy and vertex corrections
• Change of the vortex core structure in two-band superconductors at impurity-scattering-driven $s_{\pm }/s_{++}$ crossover
• Electrodynamics of superconducting pnictide superlattices
• Two-band conductivity of a FeSe${}_{0.5}$Te${}_{0.5}$ film by reflectance measurements in the terahertz and infrared range
• Interface suppressed nematicity and enhanced superconductivity of FeSe/NdFeO3 in the low doping regime
• Odd-frequency Pairing in the Edge States of Superconducting Pnictides in the Coexistence Phase with Antiferromagnetism
• Identifying the dominant pairing interaction in high-$T_c$ FeSe superconductors through Leggett modes
• Simplicity out of complexity: band structure for W${}_{20}$O${}_{58}$ superconductor
• Competing Orders and Anomalies
• Winding numbers of nodal points in Fe-based superconductors
• Evidence of a multiple boson emission in Sm${}_{1-x}$Th${}_x$OFeAs
• Stabilization of $s$-wave superconductivity through arsenic $p$-orbital hybridization in electron-doped BaFe${}_2$As${}_2$
• Specific heat in strongly hole-doped Iron-based superconductors
• Observation of strong-coupling pairing with weakened Fermi-surface nesting at optimal hole doping in Ca${}_{0.33}$Na${}_{0.67}$Fe${}_2$As${}_2$
• Variation of shear moduli across superconducting phase transitions
• Weakness of Correlation Effect Manifestation in BaNi${}_2$As${}_2$: ARPES and LDA+DMFT study
• Incommensurate magnetic states induced by ordering competition in $\mathrm{B}{\mathrm{a}}_{1-\mathrm{x}}\mathrm{N}{\mathrm{a}}_{\mathrm{x}}\mathrm{F}{\mathrm{e}}_2\mathrm{A}{\mathrm{s}}_2$
• Surface adatom conductance filtering in scanning tunneling spectroscopy of Co-doped BaFe2As2 iron pnictide superconductors
• Anisotropic gap structure and sign reversal symmetry in monolayer Fe(Se,Te)
• Possible routes to superconductivity in the surface layers of V-doped Mg${}_{1-\delta }$Ti${}_2$O${}_4$ through multiple charge transfers and suppression of Jahn-Teller activity
• Tunneling spectra of impurity states in unconventional superconductors
• Time-dependent equation for the magnetic order parameter near the quantum critical point in multiband superconductors with a spin density wave
• Slope of the upper critical field at $T_c$ in two-band superconductors with non-magnetic disorder: $s_{++}$ superconductivity in ${\text{Ba}}_{1-x}{\text{K}}_x{\text{Fe}}_2{\text{As}}_2$
• Nematic superconductivity from selective orbital pairing in Ba(Fe1-xMx)2As2 (M = Co, Ni) single crystals
• Angle-resolved photoemission studies of the superconducting gap symmetry in Fe-based superconductors
• Revealing the intrinsic superconducting gap anisotropy in surface-neutralized BaFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Importance of Fermi surface and magnetic interactions for the superconducting dome in electron doped FeSe intercalates
• In-plane p-wave coherence length in iron-based superconductors
• Fully gapped superconductivity without sign reversal in the topological superconductor PbTaSe${}_2$
• Doping evolution of the gap structure and spin-fluctuation pairing in $Ba(F{e}_{1-x}C{o}_x{)}_{2}A{s}_2$ superconductors
• Possible coexistence of double-Q magnetic order and chequerboard charge order in the re-entrant tetragonal phase of Ba0.76K0.24Fe2As2
• Quasiparticle interference in multiband superconductors with strong coupling
• Spin and charge susceptibilities of the two-orbital model within the cluster perturbation theory for Fe-based materials
• Superconductivity on the verge of electronic topological transition in Fe based superconductors
• Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides
• Non-rigid band shift and non-monotonic electronic structure changes upon doping in the normal state of the pnictide high temperature superconductor Ba2(Fe1-xCox)2As2
• Effective three-band structure in Fe-based superconductors
• The symplectic-N t-J model and s${}_{\pm }$ superconductors
• The Future of the Correlated Electron Problem
• Robust d-wave pairing symmetry in multi-orbital cobalt high temperature superconductors
• Signatures of unconventional pairing in near-vortex electronic structure of LiFeAs
• Effect of inelastic scattering on the nuclear magnetic relaxation rate 1/T1T in iron-based superconductors
• Coupling between heavy fermion superconductor CeCoIn${}_5$ and antiferromagnetic metal CeIn${}_3$ through the atomic interface
• Theoretical studies of superconductivity in doped BaCoSO
• Magnetic disorder and gap symmetry in optimally electron doped Sr(Fe, Co)${}_2$As${}_2$ superconductor
• Band structure of tungsten oxide W${}_{20}$O${}_{58}$ with ideal octahedra
• Low-energy bound states at interfaces between superconducting and block antiferromagnet regions in KxFe{2-y}Se2
• Orbital-dependent modulation of the superconducting gap in uniaxially strained Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$
• c-axis pressure induced antiferromagnetic order in optimally P-doped BaFe2(As0.70P0.30)2 superconductor
• Anisotropy of the superconducting fluctuations in multiband superconductors: the case of LiFeAs
• Local spin-density-wave order inside vortex cores in multiband superconductors
• Effect of the additional Se layer on the electronic structure of iron-based superconductor FeSe/SrTiO${}_3$
• Electron-boson spectral density of LiFeAs obtained from optical data
• Isotropic multi-gap superconductivity in BaFe1.9Pt0.1As2 from thermal transport and spectroscopic measurements
• Diverse Exotic Orders and Fermiology in Fe-based Superconductors: A Unified Mechanism for $B_{1g}/B_{2g}$ Nematicity in FeSe/(Cs,Rb)Fe${}_2$As${}_2$ and Smectic Order in BaFe${}_2$As${}_2$
• Thermodynamic properties of nodal superconductors close to a magnetic quantum critical point
• Orbital-selective Mott phase of Cu-substituted iron-based Superconductors
• Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2
• Magnetic impurities on superconducting Pb surfaces
• Atomic scale imaging of sign-changing order parameter in superconducting FeSe with Tunneling Andreev Reflection
• Direct observation of the spin exciton in Andreev spectroscopy of iron-based superconductors
• Cobalt-dimer Nitrides -- a Potential Novel Family of High Temperature Superconductors
• Absence of strong magnetic fluctuations in the iron phosphide superconductors LaFePO and Sr2ScO3FeP
• Superconductivity at an antiferromagnetic quantum critical point: the role of energy fluctuations
• Deviating band symmetries and many-body interactions in a model hole doped iron pnictide superconductor
• Uniform impurity scattering in two-band $s_{\pm }$ and $s_{++}$ superconductors
• Strong-coupling approach to temperature dependence of competing orders of superconductivity: Possible time-reversal symmetry breaking and nontrivial topology
• An effective mean field theory for the coexistence of anti-ferromagnetism and superconductivity: Applications to iron-based superconductors and cold Bose-Fermi atomic mixtures
• Interplay between nematic fluctuation and superconductivity in the two-orbital Hubbard model: A quantum Monte Carlo study
• Metallicity of Ca2Cu6P5 with Single and Double Copper-Pnictide Layers
• Effect of pairing fluctuations on the spin resonance in Fe-based superconductors
• A proposal for realizing Majorana fermions without external magnetic field in strongly correlated nanowires
• P-T phase diagram of iron arsenide superconductor NdFeAsO0.88F0.12
• Strong electron-boson coupling in the iron-based superconductor BaFe1.9Pt0.1As2 revealed by infrared spectroscopy
• Field-induced coexistence of $s_{++}$ and $s_{\pm }$ superconducting states in dirty multiband superconductors
• Investigation of magnetic phases in parent compounds of Iron-chalcogenides via quasiparticle scattering interference
• Representation-protected topology of spin-singlet $s$-wave superconductors
• On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance
• Enhanced low-energy magnetic excitations evidencing the Cu-induced localization in an Fe-based superconductor Fe${}_{0.98}$Te${}_{0.5}$Se${}_{0.5}$
• Decisive proofs of the $s_{\pm }\to s_{++}$ transition in the temperature dependence of the magnetic penetration depth
• The Hund's Superconductor Li(Fe,Co)As
• Pressure-induced magnetism in iron-based superconductors $A$Fe${}_2$As${}_2$ ($A=$ K, Cs, Rb)
• Orbital-resolved vortex core states in FeSe Superconductors: calculation based on a three-orbital model
• Hole-$s_{\pm }$ State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides
• ${}^{31}$P NMR studies of an iron-based superconductor Ba${}_{0.5}$Sr${}_{0.5}$Fe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ with $T_{\mathrm{c}}$ = 29 K
• Unusual nodal behaviors of the superconducting gap in the iron-based superconductor Ba(Fe${}_{0.65}$Ru${}_{0.35}$)${}_2$As${}_2$: Effects of spin-orbit coupling
• Universal quasi-degenerate orbital origin of two-dome phases in iron pnictide superconductors
• Superconducting density of states and vortex lattice of LaRu${}_2$P${}_2$ observed by Scanning Tunneling Spectroscopy
• Persistent Magnetism in Silver-doped BaFe2As2 Crystals
• Renormalization-group exponents for superconducting phases in two-leg ladders
• THz optical response of Ba(Fe${}_{1-x}$Ni${}_x$)${}_2$As${}_2$ films analyzed within the three-band Eliashberg s${}_{\pm }$-wave model
• Modulations of the local pairing interaction near magnetic impurities in d-wave superconductors
• Low-energy spin excitations in optimally doped CaFe${}_{0.88}$Co${}_{0.12}$AsF superconductor studied with inelastic neutron scattering
• Superconducting order parameter structure in the nematic phase of iron-based materials
• Electronic properties and surface states of RbNi${}_2$Se${}_2$
• The spectroscopic signature of Kondo screening on single adatoms in Na(Fe0.96Co0.03Mn0.01)As
• Embedded Majorana Islands
• Sublattice Dichotomy in Monolayer FeSe Superconductor
• Signatures of Amorphous Shiba State in FeTe${}_{0.55}$Se${}_{0.45}$
• Shot Noise as a probe for the pairing symmetry of Iron pnictide superconductors
• Thermodynamics of $s_{\pm }-to-s_{++}$ transition in iron pnictides in the vicinity of the Born limit
• Visualization of defect-induced interband proximity effect at the nanoscale
• Unconventional superconductivity after the BCS paradigm and empirical rules for the exploration of high temperature superconductors
• Spin correlations in the parent phase of Li${}_{1-x}$Fe${}_x$ODFeSe
• Superconductivity of Co-Doped CaKFe4As4 Investigated via Point-Contact Spectroscopy and London Penetration Depth Measurements
• The role of orbital nesting in the superconductivity of Iron-based Superconductors
• Paramagnetic spin excitations in insulating Rb${}_{0.8}$Fe${}_{1.6}$Se${}_2$
• A Field-directional Specific Heat Study on the Gap Structure of Overdoped Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Slow in-plane magnetoresistance oscillations in multiband quasi-two-dimensional metals
• Controlled pairing symmetry of the superfluid state in systems of three-component repulsive fermionic atoms in optical lattices
• Role of interactions in the energy of the spin resonance peak in Fe-based superconductors
• Particle-Hole Transformation in Strongly-Doped Iron-Based Superconductors
• Coupled multiple-mode theory for $s_{\pm }$ pairing mechanism in iron based superconductors
• Effects of order parameter self-consistency in a $s_{\pm }$-s junction
• Anisotropic superconductivity and Fermi surface reconstruction in the spin-vortex antiferromagnetic superconductor CaK(Fe${}_{0.95}$Ni${}_{0.05}$)${}_4$As${}_4$
• Multiple gaps revealed by low temperature specific heat in the 1111-type CaFe_{0.88}Co_{0.12}AsF single crystals
• Absence of nematic instability in LiFeAs
• Nematic fluctuations mediated superconductivity revealed by anisotropic strain in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Triplet pairing, orbital selectivity and correlations in Iron-based superconductors
• Gor'kov-Hedin-Baym Equations for Quantum Many-Body Systems with Spin-Dependent Interactions
• Effect of Mn Substitution on Superconductivity in PrFeAs(O,F): Role of Magnetic Impurities
• Nodeless superconducting gaps in Ca${}_{10}$(Pt${}_{4-\delta }$As${}_8$)((Fe${}_{1-x}$Pt${}_x$)${}_2$As${}_2$)${}_5$ probed by quasiparticle heat transport
• Orbital driven two-dome superconducting phases in multiorbital superconductors
• Hidden Fermi surface in K${}_x$Fe${}_{2-y}$Se${}_2$: LDA+DMFT study
• Ubiquity of rotational symmetry breaking in superconducting films, from Fe(Te,Se)/Bi${}_2$Te${}_3$ to Nb, and the effect of measurement geometry
• A Short Review of the $S_4$ Symmetric Microscopic Model for Iron-Based High Temperature Superconductors
• Probing superconductivity and pairing symmetry by coherent phonons in multiorbital superconductors
• Dynamical Coulomb Blockade as a Signature of the Sign-Reversing Cooper Pairing Potential
• Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides
• The Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$ superconducting four-gap temperature evolution: a multi-band Chebyshev-BdG approach
• S+-+d Wave Multiband Eliashberg Theory For The Iron Pnictides
• Spin triplet pairing by suppressing altermagnetism
• Unconventional superconducting correlations in fermionic many-body scars
• 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
• Superconductivity above 30 K due to the introduction of oxygen in CaFeAsF
• Hidden Ladder in SrMoO${}_3$/SrTiO${}_3$ Superlattices: Experiments and Theoretical Calculations
• Topological superconductivity in helical crystals
• "Universal" ${\Delta }_{max}/T_c$ in Fe Based Superconductors
• Gap Structure of the Overdoped Iron-Pnictide Superconductor Ba(Fe${}_{0.942}$Ni${}_{0.058}$)${}_2$As${}_2$: A Low-Temperature Specific-Heat Study
• Band structure of organic-ion-intercalated (EMIM)${}_x$FeSe superconductor
• Antiferromagnetic structure and magnetic properties of Dy2O2Te: An isostructural analog of the rare-earth superconductors R2O2Bi
• Enhancement of the superconducting transition temperature from the competition between electron-electron correlations and electron-phonon interactions
• Impurity-induced smearing of the spin resonance peak in Fe-based superconductors
• Spin-orbit coupling in Fe-based superconductors
• Particular type of gap in the spectrum of multiband superconductors
• Critical point of the transition between $s_{\pm }$ and $s_{++}$ states of a two-band superconductor with nonmagnetic impurities
• Dual Enhancement of Superconductivity in FeSe/SrTiO3 via Orbital and Correlation Synergy
• Tuning Superconductivity by Isovalent Antimony Substitution in PrFeAs(O,F)
• Band-dependent superconducting gap in SrFe${}_2$(As${}_{0.65}$P${}_{0.35}$)${}_2$ studied by angle-resolved photoemission spectroscopy
• Nematicity in LaFeAsO single crystals studied by elastoresistance, high-resolution thermal expansion and shear-modulus measurements
• Fluorine-substitution-dependent phase diagram and superconducting properties of Sm-based oxypnictides synthesized by a high-pressure growth technique
• Multipole Orders in a Chain Ferrate Na2FeSe
• Hund's coupling assisted orbital-selective superconductivity in Ba1-xKxFe2As2