Fe-based superconductors: an angle-resolved photoemission spectroscopy perspective

Abstract

Angle-resolved photoemission spectroscopy allows direct visualization and experimental determination of the electronic structure of crystals in the momentum space, including the precise characterization of the Fermi surface and the superconducting order parameter. It is thus particularly suited for investigating multiband systems such as the Fe-based superconductors. In this review, we cover several aspects of these recently discovered materials that have been addressed by this technique, with a special emphasis on their superconducting gap and their Fermi surface topology. We provide sufficient experimental evidence to support the reliability and the consistency of the angle-resolved photoemission spectroscopy measurements over a wide range of material compositions.

42 pages, 17 figures. Accepted for publication in Reports on Progress in Physics. This version is the authors' one. After publication, the final version with high resolution figures will be available at http://iopscience.iop.org/0034-4885/

References in corpus (83)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Superconductivity in Iron Compounds
• High-temperature superconductivity in iron-based materials
• Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2
• Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
• Heavily electron-doped electronic structure and isotropic superconducting gap in AxFe2Se2 (A=K,Cs)
• Two Gaps Make a High Temperature Superconductor?
• Pairing Symmetry and Pairing State in Ferropnictides: Theoretical Overview
• Superconductivity and Crystal Structures of (Ba1-xKx)Fe2As2 (x = 0 - 1)
• Pairing Symmetry in a Two-Orbital Exchange Coupling Model of Oxypnictides
• Fermi surface nesting induced strong pairing in iron-based superconductors
• A review of Fe-chalcogenide superconductors: the simplest Fe-based superconductor
• Multiband magnetism and superconductivity in Fe-based compounds
• Electronic structure of the iron-based superconductor LaOFeP
• Theory of magnetic excitations in iron-based layered superconductors
• Superconductivity without magnetism in LiFeAs
• Competition and coexistence of antiferromagnetism and superconductivity in underdoped Ba(Fe0.953Co0.047)2As2
• Magnetism in Fe-based superconductors
• Magnetism and Charge Dynamics in Iron Pnictides
• Critical change in the Fermi surface of iron arsenic superconductors at the onset of superconductivity
• Origin of the spin density wave instability in AFe${}_2$As${}_2$ (A=Ba, Sr) as revealed by optical spectroscopy
• Nodal Spin Density Wave and band topology of the FeAs based materials
• From (pi, 0) magnetic order to superconductivity with (pi, pi) magnetic resonance in Fe1.02(Te1-xSex)
• Signature of Superfluid Density in the Single-Particle Excitation Spectrum of Bi2Sr2CaCu2O8+delta
• Contrasting Spin Dynamics Between Underdoped and Overdoped Ba(Fe[1-x]Co[x])2As2
• Momentum dependence of the superconducting gap in NdFeAsO1-xFx single crystals measured by angle resolved photoemission spectroscopy
• Observation of Dirac Cone Electronic Dispersion in BaFe2As2
• Quantum criticality and nodal superconductivity in the FeAs-based superconductor KFe2As2
• Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
• Distinct Fermi Surface Topology and Nodeless Superconducting Gap in (Tl0.58Rb0.42)Fe1.72Se2 Superconductor
• Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2
• Superconducting gap symmetry of Ba0.6K0.4Fe2As2 studied by angle-resolved photoemission spectroscopy
• Strong electron correlations in the normal state of FeSe0.42Te0.58
• Fermi surface topology and low-lying quasiparticle dynamics of parent Fe${}_{1+x}$Te/Se Superconductor by orbital-polarization resolved ARPES
• Fermi surface topology and low-lying quasiparticle structure of magnetically ordered Fe1+xTe
• Coherent quasiparticle weight and its connection to high-T_c superconductivity from angle-resolved photoemission
• Multiple Nodeless Superconducting Gaps in (Ba0.6K0.4)Fe2As2 Superconductor from Angle-Resolved Photoemission Spectroscopy
• Low energy spin waves and magnetic interactions in SrFe${}_2$As${}_2$
• Where Are the Extra d Electrons in Transition-Metal Substituted Fe Pnictides?
• Nodes in the gap structure of the iron-arsenide superconductor Ba(Fe_{1-x}Co_x)_2As_2 from c-axis heat transport measurements
• Fermi surface evolution and Luttinger theorem in Na${}_x$CoO${}_2$: a systematic photoemission study
• Quantum oscillations in the parent magnetic phase of an iron arsenide high temperature superconductor
• Doping dependence of heat transport in the iron-arsenide superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$: from isotropic to strongly $k$-dependent gap structure
• Unconventional electronic reconstruction in undoped (Ba,Sr)Fe${}_2$As${}_2$ across the spin density wave transition
• Momentum-dependence of Superconducting Gap, strong-coupling dispersion Kink, and tightly bound Cooper pairs in the high-Tc (Sr,Ba)1-x(K,Na)xFe2As2 superconductors
• Tightly-bound Cooper pair, quasiparticle kinks and clues on the pairing potential in a high Tc FeAs Superconductor
• Strong nodeless pairing on separate electron Fermi surface sheets in (Tl, K)Fe${}_{1.78}$Se${}_2$ probed by ARPES
• Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe0.55Se0.45
• Local antiferromagnetic exchange and collaborative Fermi surface as key ingredients of high temperature superconductors
• Electronic structure of heavily electron-doped BaFe${}_{1.7}$Co${}_{0.3}$As${}_2$ studied by angle-resolved photoemission
• Quasiparticle Heat Transport in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$: Evidence for a k-dependent Superconducting Gap without Nodes
• Evidence for Three-Dimensionality in the Fermi Surface Topology of Layered Electron Doped Ba(Fe1-XCox)2As2 Iron Superconductors
• Spin waves in the $(\pi ,0)$ magnetically ordered iron chalcogenide Fe${}_{1.05}$Te
• Quantum oscillations in the parent pnictide BaFe${}_2$As${}_2$ : itinerant electrons in the reconstructed state
• Nesting between hole and electron pockets in Ba(Fe1-xCox)2As2 (x=0-0.3) observed with angle-resolved photoemission
• Universality of superconducting gaps in overdoped Ba0.3K0.7Fe2As2 observed by angle-resolved photoemission spectroscopy
• Three- to Two-Dimensional Transition of the Electronic Structure in CaFe2As2 - parent compound for an iron arsenic high temperature superconductor
• Electronic structure studies of BaFe2As2 by angle-resolved photoemission spectroscopy
• Fermi surface dichotomy of the superconducting gap and pseudogap in underdoped pnictides
• Unconventional superconducting gap in NaFe${}_{0.95}$Co${}_{0.05}$As observed by angle-resolved photoemission spectroscopy
• Observation of an Orbital Selective Electron-Mode Coupling in Fe-Based High-$T_c$ Superconductors
• Electronic structure reconstruction: the driving force behind the magnetic and structural transitions in NaFeAs
• Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift
• Electronic structures of ternary iron arsenides AFe${}_2$As${}_2$ (A=Ba, Ca, or Sr)
• Observation of a novel orbital selective Mott transition in Ca${}_{1.8}$Sr${}_{0.2}$RuO${}_4$
• Surface Geometric and Electronic Structure of BaFe2As2(001)
• Antiferromagnetic Correlation and the Pairing Mechanism of the Cuprates and Iron Pnictides : a View From the Functional Renormalization Group Studies
• Three-dimensional electronic structure of superconducting iron pnictides observed by angle-resolved photoemission spectroscopy
• Electron-hole Asymmetry and Quantum Critical Point in Hole-doped BaFe${}_2$As${}_2$
• Strong correlation and massive spectral-weight redistribution induced spin density wave in a-Fe1.06Te
• Dirac nodal pockets in the antiferromagnetic parent phase of FeAs superconductors
• Sr${}_2$VO${}_3$FeAs as Compared to Other Fe-based Superconductors
• Surface-driven electronic structure in LaFeAsO studied by angle resolved photoemission spectroscopy
• Sr${}_2$VO${}_3$FeAs: A Nanolayered Bimetallic Iron Pnictide Superconductor
• Isotropic three-dimensional gap in the iron-arsenide superconductor LiFeAs from directional heat transport measurements
• Nodeless superconducting gap in electron-doped BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$ probed by quasiparticle heat transport
• Unusual Electronic Structure and Observation of Dispersion Kink in CeFeAsO Parent Compound of FeAs-Based Superconductors
• Antiferromagnetic fluctuations in Fe(Se1-xTex)0.92 (x = 0.75, 1) observed by inelastic neutron scattering
• Layer dependent band dispersion and correlations using tunable Soft X-ray ARPES
• Dirac cone in iron-based high Tc superconductors
• Doping-induced vertical line nodes in the superconducting gap of the iron arsenide K-Ba122 from directional thermal conductivity

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• The Unexpected Properties of Alkali Metal Iron Selenide Superconductors
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• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Iron based superconductors: magnetism, superconductivity and electronic structure
• The key ingredients of the electronic structure of FeSe
• A review of two-band superconductivity: materials and effects on the thermodynamic and reversible mixed-state properties
• A magnetic origin for high temperature superconductivity in iron pnictides
• Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer
• Possible nodal superconducting gap emerging at the Lifshitz transition in heavily hole-doped Ba0.1K0.9Fe2As2
• Enhancement of the superconducting gap by nesting in CaKFe4As4 - a new high temperature superconductor
• FeTe${}_{1-x}$Se${}_x$ monolayer films: towards the realization of high-temperature connate topological superconductivity
• Topological Phases in the Single-Layer FeSe
• A comprehensive review on topological superconducting materials and interfaces
• Extraordinary quasiparticle scattering and bandwidth-control by dopants in iron-based superconductors
• Orbital-selective superconductivity, gap anisotropy and spin resonance excitations in a multiorbital t-J1-J2 model for iron pnictides
• Large temperature dependence of the number of carriers in Co-doped BaFe2As2
• $S_4$ Symmetric Microscopic Model for Iron-Based Superconductors
• Orbital Characters Determined from Fermi Surface Intensity Patterns using Angle-Resolved Photoemission Spectroscopy
• Quantum Monte Carlo Study of Pairing Symmetry and Correlation in Iron-based Superconductors
• Electronic phase separation: recent progress in the old problem
• Neutron spin resonance in a quasi-two-dimensional iron-based superconductor
• Distinguishing $s^{\pm }$ and $s^{++}$ electron pairing symmetries by neutron spin resonance in superconducting NaFe${}_{0.935}$Co${}_{0.045}$As
• Short-range cluster spin glass near optimal superconductivity in BaFe${}_{2-x}$Ni${}_x$As${}_2$
• Electron doping evolution of the magnetic excitations in BaFe2-xNixAs2
• Interaction-induced singular Fermi surface in a high-temperature oxypnictide superconductor
• Extreme anisotropy and anomalous transport properties of heavily electron doped Lix(NH3)yFe2Se2 single crystals
• Electronic band structure of BaCo${}_2$As${}_2$: a fully-doped ferropnictide with reduced electronic correlations
• Carrier Injection and Manipulation of Charge-Density Wave in Kagome Superconductor CsV3Sb5
• Detailed band structure of twinned and detwinned BaFe${}_2$As${}_2$ studied with angle-resolved photoemission spectroscopy
• Odd and even modes of neutron spin resonance in the bilayer iron-based superconductor CaKFe${}_4$As${}_4$
• Spectral properties of transition metal pnictides and chalcogenides: angle-resolved photoemission spectroscopy and dynamical mean field theory
• ARPES measurements of the superconducting gap of Fe-based superconductors and their implications to the pairing mechanism
• Bulk electronic structure of superconducting LaRu2P2 single crystals measured by soft x-ray angle-resolved photoemission spectroscopy
• Itinerancy enhanced quantum fluctuation of magnetic moments in iron-based superconductors
• Effects of Ru Substitution on Dimensionality and Electron Correlations in Ba(Fe_{1-x}Ru_x)_2As_2
• Observation of an isotropic superconducting gap at the Brillouin zone center of Tl${}_{0.63}$K${}_{0.37}$Fe${}_{1.78}$Se${}_2$
• Electronic phase separation in iron pnictides
• Fermi surface reconstruction in (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (0.44 $\le x\le$ 1) probed by thermoelectric power measurements
• Magnetoresistance scaling, disorder, `hot spots' and the origin of $T$-linear resistivity in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Local and collective magnetism of EuFe${}_2$As${}_2$
• Tuning electronic correlations in transition metal pnictides: chemistry beyond the valence count
• Electronic nematicity in FeSe: a first-principles perspective
• ARPES observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$
• Correlation-induced self-doping in intercalated iron-pnictide superconductor Ba2Ti2Fe2As4O
• Tetragonal and collapsed-tetragonal phases of CaFe2As2 -- a view from angle-resolved photoemission and dynamical mean field theory
• ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
• Electron doping evolution of the magnetic excitations in NaFe${}_{1-x}$Co${}_x$As
• Observation of an electron band above the Fermi level in FeTe${}_{0.55}$Se${}_{0.45}$ from \emph{in-situ} surface doping
• NaFe${}_{0.56}$Cu${}_{0.44}$As: A pnictide insulating phase induced by on-site Coulomb interaction
• Superconductivity and Crystal Structure of the Palladium-Iron-Arsenides Ca10(Fe1-xPdxAs)10Pd3As8
• Direct spectroscopic evidence for completely filled Cu $3d$ shell in BaCu${}_2$As${}_2$ and $\alpha$-BaCu${}_2$Sb${}_2$
• Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Topological magnetic order and superconductivity in EuRbFe${}_4$As${}_4$
• Spin- and angle-resolved photoemission on the topological Kondo Insulator candidate: SmB6
• Phase diagram of Josephson junction between s and s+- superconductors in dirty limit
• Role of Magnetism in Superconductivity of BaFe2As2: Study of 5d Au-doped Crystals
• Observation of non-Fermi liquid behavior in hole-doped LiFe${}_{1-x}$V${}_x$As
• Ground state pairing correlations in the $S_4$ symmetric microscopic model for iron-based superconductors
• Enhanced superconductivity in FeSe/SrTiO${}_3$ from the combination of forward scattering phonons and spin fluctuations
• Effect of surface morphology and magnetic impurities on the electronic structure in cobalt-doped BaFe2As2 superconductors
• Experimental investigation of the electronic structure of Ca${}_{0.83}$La${}_{0.17}$Fe${}_2$As${}_2$
• Structural, electronic, and dynamical properties of the tetragonal and collapsed tetragonal phases of KFe${}_2$As${}_2$
• Magnetic moment evolution and spin freezing in doped BaFe${}_2$As${}_2$
• Large low-temperature magnetoresistance in SrFe2As2 single crystals
• Antiferromagnetism in Iron-Based Superconductors: Selection of Magnetic Order and Quasiparticle Interference
• Electronic structure in one-Fe Brillouin zone of iron-pnictide superconductor CsFe${}_2$As${}_2$
• Camelback-shaped band reconciles heavy electron behavior with weak electronic Coulomb correlations in superconducting TlNi2Se2
• Observation of a Hidden Hole-Like Band Approaching the Fermi Level in K-Doped Iron Selenide Superconductor
• Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFe${}_2$As${}_{2-x}$P${}_x$
• Evolution of the Fermi surface topology in doped 122 iron pnictides
• ARPES observation of isotropic superconducting gaps in isovalent Ru-substituted Ba(Fe${}_{0.75}$Ru${}_{0.25}$)${}_2$As${}_2$
• Details of the disorder-induced transition between $s_{\pm }$ and $s_{++}$ states in two-band model for Fe-based superconductors
• 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
• Point contact spectroscopy in Fe-based superconductors: recent advancements and future challenges
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• The effect of spin fluctuations on the electronic structure in iron based superconductors
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• Observation of strong-coupling pairing with weakened Fermi-surface nesting at optimal hole doping in Ca${}_{0.33}$Na${}_{0.67}$Fe${}_2$As${}_2$
• Revealing the intrinsic superconducting gap anisotropy in surface-neutralized BaFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• Effective three-band structure in Fe-based superconductors
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• A Short Review of the $S_4$ Symmetric Microscopic Model for Iron-Based High Temperature Superconductors
• Proximity-induced hidden order transition in a correlated heterostructure Sr${}_2$VO${}_3$FeAs