Kagome superconductors AV${}_3$Sb${}_5$ (A=K, Rb, Cs)

Abstract

The quasi two-dimensional (quasi-2D) kagome materials AV${}_3$Sb${}_5$ (A=K, Rb, Cs) were found to be a prime example of kagome superconductors, a new quantum platform to investigate the interplay between electron correlation effects, topology and geometric frustration. In this review, we report recent progress on the experimental and theoretical studies of AV${}_3$Sb${}_5$ and provide a broad picture of this fast-developing field in order to stimulate an expanded search for unconventional kagome superconductors. We review the electronic properties of AV${}_3$Sb${}_5$, the experimental measurements of the charge density wave state, evidence of time-reversal symmetry breaking, and other potential hidden symmetry breaking in these materials. A variety of theoretical proposals and models that address the nature of the time-reversal symmetry breaking are discussed. Finally, we review the superconducting properties of AV${}_3$Sb${}_5$, especially the potential pairing symmetries and the interplay between superconductivity and the charge density wave state.

A review on kagome superconductors AV${}_3$Sb${}_5$, including 14 pages and 9 figures

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• Multiband superconductivity with sign-preserving order parameter in kagome superconductor CsV3Sb5
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• Nodeless superconductivity in the kagome metal CsV${}_3$Sb${}_5$
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• Multiple Energy Scales and Anisotropic Energy Gap in the Charge-Density-Wave Phase of Kagome Superconductor CsV3Sb5
• Absence of local moments in the kagome metal KV3Sb5 as determined by muon spin spectroscopy
• Emergence of new van Hove singularities in the charge density wave state of a topological kagome metal RbV3Sb5
• Charge-order-assisted topological surface states and flat bands in the kagome superconductor CsV${}_3$Sb${}_5$
• Anisotropic superconducting properties of Kagome metal CsV3Sb5
• Coherent phonon spectroscopy and interlayer modulation of charge density wave order in the kagome metal CsV${}_3$Sb${}_5$
• Probing topological quantum matter with scanning tunnelling microscopy
• Quantum transport evidence of topological band structures of kagome superconductor CsV3Sb5
• Charge-density-wave-induced bands renormalization and energy gaps in a kagome superconductor RbV3Sb5
• Microscopic evidence for anisotropic multigap superconductivity in the CsV${}_3$Sb${}_5$ kagome superconductor
• Multiple-Q Instability by (d-2)-dimensional Connections of Fermi Surfaces
• Possible star-of-David pattern charge density wave with additional modulation in the kagome superconductor CsV${}_3$Sb${}_5$
• Charge-Density-Wave-Induced Peak-Dip-Hump Structure and the Multiband Superconductivity in a Kagome Superconductor CsV${}_3$Sb${}_5$
• Electronic correlations in the normal state of kagome superconductor KV${}_3$Sb${}_5$
• Evidence of a hidden flux phase in the topological kagome metal CsV${}_3$Sb${}_5$
• Double-dome superconductivity under pressure in the V-based Kagome metals AV3Sb5 (A = Rb and K)
• Unconventional charge density wave and photoinduced lattice symmetry change in Kagome Metal CsV${}_3$Sb${}_5$ probed by time-resolved spectroscopy
• Manipulation of Jeff=3/2 states by tuning the tetragonal distortion
• No observation of chiral flux current in the topological kagome metal CsV${}_3$Sb${}_5$
• Geometry of the charge density wave in kagom$\acute{e}$ metal AV${}_3$Sb${}_5$
• Distinctive momentum dependent charge-density-wave gap observed in CsV${}_3$Sb${}_5$ superconductor with topological Kagome lattice
• First-principles study on the double-dome superconductivities in kagome material CsV${}_3$Sb${}_5$ under pressure
• Gapless excitations inside the fully gapped kagome superconductors AV${}_3$Sb${}_5$
• Chiral spin density wave order on frustrated honeycomb and bilayer triangle lattice Hubbard model at half-filling
• Superconductivity modulated by structural phase transitions in pressurized vanadium-based kagome metals
• Low-energy effective theory and symmetry classification of flux phases on Kagome lattice

Cited by in corpus (113)

• Quantum states and intertwining phases in kagome materials
• Tunable nodal kagome superconductivity in charge ordered RbV3Sb5
• Flat bands, strange metals, and the Kondo effect
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• Chiral kagome superconductivity modulations with residual Fermi arcs in KV3Sb5 and CsV3Sb5
• Competing charge-density wave instabilities in the kagome metal ScV${}_6$Sn${}_6$
• Competing superconductivity and charge-density wave in Kagome metal CsV3Sb5: evidence from their evolutions with sample thickness
• A new class of bilayer kagome lattice compounds with Dirac nodal lines and pressure-induced superconductivity
• Theory of nematic charge orders in kagome metals
• Enhanced Spin-polarization via Partial Ge1-dimerization as the Driving Force of the 2$\times$2$\times$2 CDW in FeGe
• Electrically controlled superconductor-insulator transition and giant anomalous Hall effect in kagome metal CsV3Sb5 nanoflakes
• Annealing-tunable charge density wave in the kagome antiferromagnet FeGe
• Intertwined van-Hove Singularities as a Mechanism for Loop Current Order in Kagome Metals
• Correlated Electronic Structure and Incipient Flat Bands of the Kagome Superconductor CsCr3Sb5
• Novel three-dimensional Fermi surface and electron-correlation-induced charge density wave in FeGe
• Electronic Landscape of Kagome Superconductors $\text{A}$V${}_3$Sb${}_5$ ($\text{A}$ = K, Rb, Cs) from Angle-Resolved Photoemission Spectroscopy
• Magnetic interactions and possible structural distortion in kagome FeGe from first-principles study and symmetry analysis
• Monolayer Kagome Metals AV${}_3$Sb${}_5$
• Impact of Sb degrees of freedom on the charge density wave phase diagram of the kagome metal CsV${}_3$Sb${}_5$
• Electronic properties and phase transition in Kagome metal, Yb0.5Co3Ge3
• The kagome Hubbard model from a functional renormalization group perspective
• The structure of kagome superconductors CsV${}_3$Sb${}_5$ in the charge density wave states
• Electrical and thermal transport properties of kagome metals $A$Ti${}_3$Bi${}_5$ ($A$ = Rb, Cs)
• Symmetry breaking and ascending in the magnetic kagome metal FeGe
• Absence of $E_{2g}$ nematic instability and dominant $A_{1g}$ response in the kagome metal CsV${}_3$Sb${}_5$
• Origin of $\pi$-shifted three-dimensional charge density waves in kagome metal AV${}_3$Sb${}_5$
• Tensor network approach to the fully frustrated XY model on a kagome lattice with a fractional vortex-antivortex pairing transition
• Diverse electronic landscape of the kagome metal YbTi3Bi4
• Kagome metals
• Kagome Materials I: SG 191, ScV${}_6$Sn${}_6$. Flat Phonon Soft Modes and Unconventional CDW Formation: Microscopic and Effective Theory
• Chiral-Flux-Phase-Based Topological Superconductivity in Kagome Systems with Mixed Edge Chiralities
• Crossover between electron-electron and electron-phonon mediated pairing on the Kagome lattice
• Quasidisorder Induced Topology
• Superconductivity in kagome metal ThRu3Si2
• Self-consistent theory of $2\times 2$ pair density waves in kagome superconductors
• Electronic band structures of topological kagome materials
• Enhanced nematicity emerging from higher-order van Hove singularities
• Classification of Lifshitz invariant in multiband superconductors: an application to Leggett modes in the linear response regime in Kagome lattice models
• Local spectroscopic evidence for a nodeless magnetic kagome superconductor CeRu${}_2$
• FeGe1-xSbx:a series of novel kagome metals with noncollinear antiferromagnetism
• Electronic orders on the kagome lattice at the lower Van Hove filling
• Origin of anomalous magnetotransport in kagome superconductors AV${}_3$Sb${}_5$ (A=K,Rb,Cs)
• AV${}_3$Sb${}_5$ kagome superconductors: a review with transport measurements
• UOTe: Kondo-interacting topological antiferromagnet in a van der Waals lattice
• Condensation of preformed charge density waves in kagome metals
• Non-degenerate surface pair density wave in the Kagome superconductor CsV${}_3$Sb${}_5$ -- application to vestigial orders
• Charge 4$e$ superconductor: a wavefunction approach
• Statistical learning of engineered topological phases in the kagome superlattice of AV${}_3$Sb${}_5$
• Kagome materials $A$V${}_3$Sb${}_5$ ($A$=K,Rb,Cs): pairing symmetry and pressure-tuning studies
• Perspective: imaging atomic step geometry to determine surface terminations of kagome materials and beyond
• Interplay between Chiral Charge Density Wave and Superconductivity in Kagome Superconductors: A Self-consistent Theoretical Analysis
• Evidence for Quantum Stripe Ordering in a Triangular Optical Lattice
• Conventional Superconductivity in the Doped Kagome Superconductor Cs(V0.86Ta0.14)3Sb5 from Vortex Lattice Studies
• Signature of point nodal superconductivity in the Dirac semimetal PdTe
• Topological electronic structure and electronic nematicity in candidate kagome superconductors, ATi${}_3$Bi${}_5$ (A = Rb, Cs)
• Electrical and thermal transport properties of kagome metals AV${}_3$Sb${}_5$ (A=K, Rb, Cs)
• Exotic charge density waves and superconductivity on the Kagome Lattice
• Higher-Order Van Hove Singularities in Kagome Topological Bands
• Observation of Fermi-surface-dependent anisotropic Cooper pairing in kagome superconductor CsV3Sb5
• Electronic Correlation Effects on Stabilizing a Perfect Kagome Lattice and Ferromagnetic Fluctuation in LaRu${}_3$Si${}_2$
• Fully-gapped superconductivity with rotational symmetry breaking in pressurized kagome metal CsV${}_3$Sb${}_5$
• Energy landscape and phase competition of CsV3Sb5-, CsV6Sb6-, and TbMn6Sn6-type Kagome materials
• Tuning electronic pairing by uniaxial strain in kagome lattices
• Fermi surface of magnetic kagome compound GdV6Sn6 investigated using de Haas van Alphen Oscillations
• Interplay of $d$- and $p$-states in RbTi${}_3$Bi${}_5$ and CsTi${}_3$Bi${}_5$ flat-band kagome metals
• Unveiling van Hove singularity modulation and fluctuated charge order in kagome superconductor $\mathrm{Cs}{\mathrm{V}}_3\mathrm{S}{\mathrm{b}}_5$ via time-resolved ARPES
• ZrOsSi: A $Z_2$ topological metal with a superconducting ground state
• Origin of competing charge density waves in kagome metal ScV${}_6$Sn${}_6$
• Phase coherence of charge-$6e$ superconductors via a frustrated Kagome XY antiferromagnet
• Photoemission Insights to Electronic Orders in Kagome Superconductor AV3Sb5
• Truly local topological dynamics of driven defects in Chern insulator
• Loop Current Order on the Kagome Lattice
• Thermomodulated intrinsic Josephson effect in Kagome CsV3Sb5
• Charge-density-wave quantum critical point under pressure in 2$H$-TaSe${}_2$
• Microscopic study of the impurity effect in the kagome superconductor La(Ru${}_{1-x}$Fe${}_x$)${}_3$Si${}_2$
• Optically active Higgs and Leggett modes in multiband pair-density-wave superconductors with Lifshitz invariant
• Tuning the Intrinsic Spin Hall Effect by Charge Density Wave Order in Topological Kagome Metals
• Impact of Charge Density Waves on Superconductivity and Topological Properties in AV${}_3$Sb${}_5$ Kagome Superconductors
• Interplay of Charge Density Wave and Magnetism on the Kagomé Lattice
• Common sublattice-pure van Hove singularities in the kagome superconductors $\text{A}$V${}_3$Sb${}_5$ ($\text{A}$ = K, Rb, Cs)
• Nature of the 1/3 Magnetization Plateau in Spin-1/2 Kagome Antiferromagnets
• Pairing correlation of the Kagome-lattice Hubbard model with the nearest-neighbor interaction
• Stacking-Dependent Van Hove Singularity Shifts in Three-Dimensional Charge Density Waves of Kagome Metals AV${}_3$Sb${}_5$ (A = K, Rb, Cs)
• Magnetoresistance hysteresis in the superconduting state of Kagome CsV${}_3$Sb${}_5$
• Vortex phase diagram of kagome superconductor CsV${}_3$Sb${}_5$
• Constraints on the orbital flux phase in $A$V${}_3$Sb${}_5$ from polar Kerr effect
• Charge density waves and pinning by lattice anisotropy in 214 cuprates
• Emergent dynamical Kondo coherence and competing magnetic order in a correlated kagome flat-band metal CsCr6Sb6
• Weak low-temperature ferromagnetism and linear magnetoresistance in Lu${}_{0.75}$Fe${}_6$Sn${}_6$ with a disordered HfFe${}_6$Ge${}_6$-type structure
• Observation of unexpected band splitting and magnetically-induced band structure reconstruction in TbTi${}_3$Bi${}_4$
• Origin of the charge density wave state in BaFe${}_2$Al${}_9$
• Exploring strong electronic correlations in the breathing kagome metal Fe${}_3$Sn
• Nonequilibrium control of kagome metals
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• Recent progress in quantum spin liquids, fractional magnetization plateaus, and unconventional superconductivity in kagome lattices
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• Altermagnetism in an interacting model of Kagome materials
• Density-wave like behavior in a new Kagome material Ce${}_2$Ru${}_3$Si
• Magnetism of kagome metals $\left({\text{Fe}}_{1-x}{\text{Co}}_x\right)\text{Sn}$ studied by $\mu$SR
• The possible frustrated superconductivity in the kagome superconductors
• Non-Abelian line graph: A generalized approach to flat bands
• Majorana edge states in s-wave kagome superconductors with Rashba interaction
• High-throughput study of kagome compounds in the AV3Sb5 family
• Magnetic fluctuations near the Van Hove singularity in the kagome-lattice Hubbard model at finite doping
• Probing Quantum Geometric Phases via Scanning Tunneling Microscopy
• Time-reversal symmetry-breaking phenomena in transport study of kagome superconductivity
• Microscopic origin of period-four stripe charge-density-wave in kagome metal CsV${}_3$Sb${}_5$
• Synergistic doping and stabilization of magnetically tunable LnTi${}_3$(Sb,Sn)${}_4$ (Ln:Ce--Gd) kagome metals
• High-pressure modulation of breathing kagome lattice: Cascade of Lifshitz transitions and evolution of the electronic structure
• Precompression engineering of metal-insulator transition and magnetism in designed breathing kagome systems
• Electron-electron and electron-phonon collision cross sections in CsV3Sb5
• Single crystal growth, structural and physical properties, and absence of a charge density wave in Ti_{0.85}Fe6Ge6
• Nature of magnetic exchange interactions in kagome antiferromagnets FeGe and FeSn