Dirac fermions and flat bands in the ideal kagome metal FeSn

Abstract

The kagome lattice based on 3d transition metals is a versatile platform for novel topological phases hosting symmetry-protected electronic excitations and exotic magnetic ground states. However, the paradigmatic states of the idealized two-dimensional (2D) kagome lattice - Dirac fermions and topological flat bands - have not been simultaneously observed, partly owing to the complex stacking structure of the kagome compounds studied to date. Here, we take the approach of examining FeSn, an antiferromagnetic single-layer kagome metal with spatially-decoupled kagome planes. Using polarization- and termination-dependent angle-resolved photoemission spectroscopy (ARPES), we detect the momentum-space signatures of coexisting flat bands and Dirac fermions in the vicinity of the Fermi energy. Intriguingly, when complemented with bulk-sensitive de Haas-van Alphen (dHvA) measurements, our data reveal an even richer electronic structure that exhibits robust surface Dirac fermions on specific crystalline terminations. Through band structure calculations and matrix element simulations, we demonstrate that the bulk Dirac bands arise from in-plane localized Fe-3d orbitals under kagome symmetry, while the surface state realizes a rare example of fully spin-polarized 2D Dirac fermions when combined with spin-layer locking in FeSn. These results highlight FeSn as a prototypical host for the emergent excitations of the kagome lattice. The prospect to harness these excitations for novel topological phases and spintronic devices is a frontier of great promise at the confluence of topology, magnetism, and strongly-correlated electron physics.

References in corpus (9)

• High temperature fractional quantum Hall states
• Fractional quantum Hall states at zero magnetic field
• Nearly-flat bands with nontrivial topology
• First direct observation of Dirac fermions in graphite
• Negative flat band magnetism in a spin-orbit coupled correlated kagome magnet
• Non-collinear Antiferromagnets and the Anomalous Hall Effect
• Theoretical prediction of a strongly correlated Dirac metal
• Interaction-driven topological insulators on the kagome and the decorated honeycomb lattices
• Creating Weyl nodes and controlling their energy by magnetization rotation

Cited by in corpus (309)

• CsV${}_3$Sb${}_5$: a ${\mathbb{Z}}_2$ topological kagome metal with a superconducting ground state
• Cascade of correlated electron states in a kagome superconductor CsV3Sb5
• Discovery of a quantum limit Chern magnet TbMn6Sn6
• Topological kagome magnets and superconductors
• Progress and prospects in magnetic topological materials
• Topological flat bands in frustrated kagome lattice CoSn
• Three-dimensional charge density wave and robust zero-bias conductance peak inside the superconducting vortex core of a kagome superconductor CsV${}_3$Sb${}_5$
• Superconductivity and normal-state properties of kagome metal RbV3Sb5 single crystals
• Chiral flux phase in the Kagome superconductor AV${}_3$Sb${}_5$
• Discovery of charge density wave in a correlated kagome lattice antiferromagnet
• Rotation symmetry breaking in the normal state of a kagome superconductor KV3Sb5
• Rich Nature of Van Hove Singularities in Kagome Superconductor CsV${}_3$Sb${}_5$
• Synthesis of a mesoscale ordered 2D-conjugated polymer with semiconducting properties
• Kagome superconductors AV${}_3$Sb${}_5$ (A=K, Rb, Cs)
• Quantum phases driven by strong correlations
• Novel magnetic states and nematic spin chirality in the kagome lattice metal YMn${}_6$Sn${}_6$
• Twofold symmetry of $c$-axis resistivity in topological kagome superconductor CsV${}_3$Sb${}_5$ with in-plane rotating magnetic field
• Orbital-selective Dirac fermions and extremely flat bands in frustrated kagome-lattice metal CoSn
• Quantum states and intertwining phases in kagome materials
• Intertwined magnetism and charge density wave order in kagome FeGe
• Interplay between charge order and superconductivity in the kagome metal KV${}_3$Sb${}_5$
• AV${}_3$Sb${}_5$ Kagome Superconductors: Progress and Future Directions
• Theory of the charge-density wave in $A$V${}_3$Sb${}_5$ kagome metals
• Nodeless superconductivity in the kagome metal CsV${}_3$Sb${}_5$
• Origin of the Charge Density Wave in the Kagome Metal CsV${}_3$Sb${}_5$ as Revealed by Optical Spectroscopy
• In-plane magnetic field induced double fan spin structure with $\text{c}$-axis component in metallic kagome antiferromagnet YMn${}_6$Sn${}_6$
• Near-room-temperature giant topological Hall effect in antiferromagnetic kagome metal YMn6Sn6
• Observation of topological flat bands in the kagome semiconductor Nb${}_3$Cl${}_8$
• 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
• Spin-split collinear antiferromagnets: a large-scale ab-initio study
• Coherent phonon spectroscopy and interlayer modulation of charge density wave order in the kagome metal CsV${}_3$Sb${}_5$
• Fantastic flat bands and where to find them: The CoSn-type compounds
• Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of $R{V}_{6}S{n}_6$ ($R$=Gd,Ho)
• Charge-density-wave-induced bands renormalization and energy gaps in a kagome superconductor RbV3Sb5
• Observation of enhanced free-electron radiation from photonic flatband resonances
• Charge density wave orders and enhanced superconductivity under pressure in the kagome metal CsV3Sb5
• Dirac Fermions in Antiferromagnetic FeSn Kagome Lattices with Combined Space Inversion and Time Reversal Symmetry
• Optical detection of charge-density-wave instability in the non-magnetic kagome metal KV${}_3$Sb${}_5$
• Manipulating of magnetism in the topological semimetal EuCd2As2
• A flat band-induced correlated kagome metal
• Tunable Topological Dirac Surface States and Van Hove Singularities in Kagome Metal GdV${}_6$Sn${}_6$
• Loop currents in $A$V${}_3$Sb${}_5$ kagome metals: multipolar and toroidal magnetic orders
• Low-energy optical properties of the non-magnetic kagome metal CsV${}_3$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)
• Coexistence of Tri-Hexagonal and Star-of-David Pattern in the Charge Density Wave of the Kagome Superconductor AV${}_3$Sb${}_5$
• Topological Quantum Materials with Kagome Lattice
• Localized spin-orbit polaron in magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Competing charge-density wave instabilities in the kagome metal ScV${}_6$Sn${}_6$
• Realization of robust boundary modes and non-contractible loop states in photonic Kagome lattices
• Abundant lattice instability in kagome metal ScV${}_6$Sn${}_6$
• Spin-phonon coupling driven Charge density wave in a Kagome Magnet
• Anomalous Hall effect in ferrimagnetic metal RMn6Sn6 (R = Tb, Dy, Ho) with clean Mn kagome lattice
• Screening 2D materials with topological flat bands
• No observation of chiral flux current in the topological kagome metal CsV${}_3$Sb${}_5$
• Observation of Flat Band, Dirac Nodal Lines and Topological Surface States in Kagome Superconductor CsTi${}_3$Bi${}_5$
• Exchange-biased topological transverse thermoelectric effects in a Kagome ferrimagnet
• Measurements of the quantum geometric tensor in solids
• Anisotropically large anomalous and topological Hall effect in a kagome magnet
• Correlated order at the tipping point in the kagome metal CsV${}_3$Sb${}_5$
• Uniaxial ferromagnetism in the kagome metal TbV${}_6$Sn${}_6$
• Optical spectroscopy and band structure calculations of structural phase transition in the Vanadium-based kagome metal ScV${}_6$Sn${}_6$
• Flat band separation and robust spin-Berry curvature in bilayer kagome metals
• Observation of electronic nematicity driven by three-dimensional charge density wave in kagome lattice KV${}_3$Sb${}_5$
• Spectroscopic evidence of flat bands in breathing kagome semiconductor Nb3I8
• Spin excitations in metallic kagome lattice FeSn and CoSn
• Order-disorder Peierls instability in the kagome metal (Cs,Rb)V${}_3$Sb${}_5$
• A new class of bilayer kagome lattice compounds with Dirac nodal lines and pressure-induced superconductivity
• Anisotropic magnetic property of single crystals $R$V${}_6$Sn${}_6$ ($R$ = Y, Gd - Tm, Lu)
• Non-trivial band topology and orbital-selective electronic nematicity in a new titanium-based kagome superconductor
• Topological Semimetal driven by Strong Correlations and Crystalline Symmetry
• Crystal Net Catalog of Model Flat Band Materials
• Fermion-boson many-body interplay in a frustrated kagome paramagnet
• Quantum Interactions in Topological R166 Kagome Magnet
• Non-Fermi liquid behavior in a correlated flatband pyrochlore lattice
• Tuning the flat bands of the kagome metal CoSn with Fe, In, or Ni doping
• Optical study of RbV${}_3$Sb${}_5$: Multiple density-wave gaps and phonon anomalies
• Anomalous Hall and Nernst effects in epitaxial films of topological kagome magnet Fe3Sn2
• Strain-sensitive superconductivity in kagome metals KV${}_3$Sb${}_5$ and CsV${}_3$Sb${}_5$ probed by point-contact spectroscopy
• Enhanced Spin-polarization via Partial Ge1-dimerization as the Driving Force of the 2$\times$2$\times$2 CDW in FeGe
• Three-dimensional energy gap and origin of charge-density wave in kagome superconductor KV3Sb5
• Anomalous Hall effect in distorted kagome magnets (Nd, Sm)Mn${}_6$Sn${}_6$
• Plethora of tunable Weyl fermions in kagome magnet Fe3Sn2 thin films
• A Class of Magnetic Topological Material Candidates with Hypervalent Bi Chains
• Damped Dirac magnon in a metallic kagome antiferromagnet FeSn
• Experimental evidence for Berry curvature multipoles in antiferromagnets
• GdV6Sn6: a Multi-carrier Metal with Non-magnetic 3d-electron Kagome Bands and 4f-electron Magnetism
• Evolution of electronic structure in pristine and hole-doped kagome metal RbV${}_3$Sb${}_5$
• Nanoscale visualization and spectral fingerprints of the charge order in ScV6Sn6 distinct from other kagome metals
• RKKY interaction in a doped pseudospin-1 fermion system at finite temperature
• Spectroscopic Evidence for a Three-Dimensional Charge Density Wave in Kagome Superconductor CsV${}_3$Sb${}_5$
• Large anomalous Hall effect induced by weak ferromagnetism in the noncentrosymmetric antiferromagnet $\mathrm{Co}{\mathrm{Nb}}_3{\mathrm{S}}_6$
• Muon-spin relaxation study of the layered kagome superconductor CsV${}_3$Sb${}_5$
• Pressure-induced ferromagnetism in the topological semimetal EuCd${}_2$As${}_2$
• Designing flat-band tight-binding models with tunable multifold band touching points
• Frustrated charge order and cooperative distortions in ScV6Sn6
• Robust Kagome Electronic Structure in Topological Quantum Magnets XMn6Sn6 (X = Dy, Tb, Gd, Y)
• Correlated Electronic Structure and Incipient Flat Bands of the Kagome Superconductor CsCr3Sb5
• Ferromagnetic helical nodal line and Kane-Mele spin-orbit coupling in kagome metal Fe3Sn2
• Large anisotropic topological Hall effect in a hexagonal non-collinear magnet Fe5Sn3
• Novel three-dimensional Fermi surface and electron-correlation-induced charge density wave in FeGe
• Electronic properties of correlated kagomé metals AV${}_3$Sb${}_5$(A = K, Rb, Cs): A perspective
• Tunable Sample-wide Electronic Kagome Lattice in Low-angle Twisted Bilayer Graphene
• Are Heavy Fermion Strange Metals Planckian?
• Superconducting pairing symmetry in the kagome-lattice Hubbard model
• Adsorption-controlled growth of MnTe(Bi2Te3)n by molecular beam epitaxy exhibiting stoichiometry-controlled magnetism
• Dynamics and Resilience of the Charge Density Wave in a bilayer kagome metal
• Magnetic interactions and possible structural distortion in kagome FeGe from first-principles study and symmetry analysis
• Finite-temperature plasmons, damping and collective behavior for $\alpha -{\mathcal{T}}_3$ model
• Endless Dirac nodal lines in kagome-metal Ni3In2S2
• Protracted Kondo screening and kagome bands in heavy-fermion metal Ce${}_3$Al
• Superconductivity in kagome metal YRu3Si2 with strong electron correlations
• Realization of a two-dimensional checkerboard lattice in monolayer Cu${}_2$N
• Intrinsic Magnetic Topological Materials
• Gap generation and flat band catalysis in dice model with local interaction
• Monolayer Kagome Metals AV${}_3$Sb${}_5$
• Discovery and construction of surface kagome electronic states induced by p-d electronic hybridization
• Competing itinerant and local spin interactions in kagome metal FeGe
• Stable computation of entanglement entropy for 2D interacting fermion systems
• High-order Van Hove singularities and their connection to flat bands
• Tunable magnetism and electron correlation in Titanium-based Kagome metals RETi3Bi4 (RE = Yb, Pr, and Nd) by rare-earth engineering
• Emergence of flat bands and ferromagnetic fluctuations via orbital-selective electron correlations in Mn-based kagome metal
• Evidence of orbit-selective electronic kagome lattice with planar flat-band in correlated paramagnetic YCr6Ge6
• Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe${}_3$Sn
• Structures and physical properties of V-based kagome metals CsV${}_6$Sb${}_6$ and CsV${}_8$Sb${}_{12}$
• Superconductivity modulated by structural phase transitions in pressurized vanadium-based kagome metals
• Superconductivity from Orbital-Selective Electron-Phonon Coupling in $A{\mathrm{V}}_3{\mathrm{Sb}}_5$
• Observation of flat and weakly dispersing bands in a van der Waals semiconductor Nb3Br8 with breathing kagome lattice
• Interplay of Magnetism and Topological Superconductivity in Bilayer Kagome Metals
• Electronic properties and phase transition in Kagome metal, Yb0.5Co3Ge3
• Origin and stability of the charge density wave in ScV${}_6$Sn${}_6$
• Corner- and sublattice-sensitive Majorana zero modes on the kagome lattice
• Dirac fermions with plaquette interactions. II. SU(4) phase diagram with Gross-Neveu criticality and quantum spin liquid
• Reversible Non-Volatile Electronic Switching in a Near Room Temperature van der Waals Ferromagnet
• Magneto-Transport Properties of Kagome Magnet TmMn${}_6$Sn${}_6$
• Topological Hall effect induced by chiral fluctuations in ErMn6Sn6
• Structural instability and charge modulations in the Kagome superconductor $A$V${}_3$Sb${}_5$
• Strain-induced pseudomagnetic field and quantum oscillations in kagome crystals
• Kagome Flatbands for Coherent Exciton-Polariton Lasing
• Record-high Mobility and Extreme Magnetoresistance on Kagome-lattice in Compensated Semimetal Ni3In2S2
• Metal-insulator transition and intermediate phases in the kagome lattice Hubbard model
• Signatures of Hundness in Kagome Metals
• Molecular beam epitaxy of the magnetic kagome metal FeSn on LaAlO3 (111)
• Spin-polarized imaging of the antiferromagnetic structure and field-tunable bound states in kagome magnet FeSn
• Observation of Flat Bands and Dirac Cones in a Pyrochlore Lattice Superconductor
• Role of electronic correlations in the Kagome lattice superconductor LaRh${}_3$B${}_2$
• Effect of magnetism and phonons on localized carriers in the ferrimagnetic kagome metals GdMn${}_6$Sn${}_6$ and TbMn${}_6$Sn${}_6$
• Dirac fermions with plaquette interactions. III. SU(N) phase diagram with Gross-Neveu criticality and first-order phase transition
• Colossal orbital Zeeman effect driven by tunable spin-Berry curvature in a kagome metal
• Magneto-optical detection of topological contributions to the anomalous Hall effect in a kagome ferromagnet
• How correlations change the magnetic structure factor of the kagome Hubbard model
• Giant periodic pseudo-magnetic fields in strained kagome magnet FeSn epitaxial films on SrTiO${}_3$(111) substrate
• Realistic flat-band model based on degenerate $p$-orbitals in two-dimensional ionic materials
• Distinct switching of chiral transport in the kagome metals KV${}_3$Sb${}_5$ and CsV${}_3$Sb${}_5$
• Visualizing the Localized Electrons of a Kagome Flat Band
• Complex magnetic and spatial symmetry breaking from correlations in kagome flat bands
• Visualizing symmetry-breaking electronic orders in epitaxial Kagome magnet FeSn films
• Evolution of Magnetism in Magnetic Topological Semimetal NdSb${}_x$Te${}_{2-x+\delta }$
• Flat-Band Itinerant Antiferromagnetism in the Kagome Metal CoSn1-xInx
• Spin density wave and van Hove singularity in the kagome metal CeTi3Bi4
• Electronic Correlations and Evolution of the Charge-Density Wave in the Kagome Metals $A$V${}_3$Sb${}_5$ ($A$ = K, Rb, Cs)
• Magnetic kagome materials RETi3Bi4 family with weak interlayer interactions
• Tilted Dirac cones and topological transitions in strained kagome lattices
• Spin Excitations and Flat Electronic Bands in a Cr-based Kagome Superconductor
• FeGe as a building block for the kagome 1:1, 1:6:6, and 1:3:5 families: hidden d-orbital decoupling of flat band sectors, effective models and interaction Hamiltonians
• Chiral and flat-band magnetic cluster excitations in a ferromagnetic kagome metal
• Heavy-fermions in frustrated Hund's metal with portions of incipient flat-bands
• \textit{Ab initio} study on spin fluctuations of itinerant kagome magnet FeSn
• An unconventional platform for two-dimensional Kagome flat bands on semiconductor surfaces
• Magnetic-coupled electronic landscape in bilayer-distorted titanium-based kagome metals
• Sumanene monolayer of pure carbon: a two-dimensional Kagome-analogy lattice with desirable band gap, ultrahigh carrier mobility and strong exciton binding energy
• Kagome metals
• Quantum oscillations in kagome metals (Ti, Zr, Hf)V6Sn6 at Van Hove filling
• Diverse electronic landscape of the kagome metal YbTi3Bi4
• Realization of Kagome Kondo lattice
• Persistent flat band splitting and strong selective band renormalization in a kagome magnet thin film
• Topological Electronic Structure Evolution with Symmetry Breaking Spin Reorientation in (Fe${}_{1-x}$Co${}_x$)Sn
• CrRhAs: a member of a large family of metallic kagome antiferromagnets
• Investigating the magneto-elastic properties in FeSn and Fe${}_3$Sn${}_2$ flat band metals
• Phonon collapse and anharmonic melting of the 3D charge-density wave in kagome metals
• Sixfold fermion near the Fermi level in cubic PtBi2
• Line-graph-lattice crystal structures of stoichiometric materials
• Quantum Phases of Kagome Electron System with Half-Filled Flat Bands
• Pressure-induced creation and annihilation of Weyl points in Td- and 1T"-Mo0.5W0.5Te2
• Glass-like Cross-plane Thermal Conductivity of Kagome Metals RbV3Sb5 and CsV3Sb5
• Emus live on the Gross-Neveu-Yukawa archipelago
• Quantum Oscillations in kagome metals CsTi3Bi5 and RbTi3Bi5
• Classification of Lifshitz invariant in multiband superconductors: an application to Leggett modes in the linear response regime in Kagome lattice models
• Yu-Shiba-Rusinov bands in a self-assembled kagome lattice of magnetic molecules
• Electronic band structures of topological kagome materials
• Order-by-disorder charge density wave condensation at $\text{q}=(\frac{1}{3},\frac{1}{3},\frac{1}{3})$ in kagome metal ScV${}_6$Sn${}_6$
• Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe${}_3$Ge
• 1D flat bands in phosphorene nanoribbons with pentagonal nature
• Frustrated charge density wave and quasi-long-range bond-orientational order in the magnetic kagome FeGe
• Large ordered moment with strong easy-plane anisotropy and vortex-domain pattern in the kagome ferromagnet Fe${}_3$Sn
• Temperature dependence of correlated electronic states in archetypal kagome metal CoSn
• Phononic drumhead surface state in distorted kagome compound RhPb
• Ground-state magnetic structures of topological kagome metals RV${}_6$Sn${}_6$ (R = Tb, Dy, Ho, Er)
• Electron correlations and $T$-breaking density wave order in a ${\mathbb{Z}}_2$ kagome metal
• Structural magnetic glassiness in spin ice Dy${}_2$Ti${}_2$O${}_7$
• FeGe1-xSbx:a series of novel kagome metals with noncollinear antiferromagnetism
• Field-Induced Magnetic States in the Metallic Rare-Earth Layered Triangular Antiferromagnet TbAuAl${}_4$Ge${}_2$
• Two elementary band representation model, Fermi surface nesting, and surface topological superconductivity in $A$V${}_3$Sb${}_5$ ($A=\text{K, Rb, Cs}$)
• Emergent chiral spin ordering and anomalous Hall effect of kagome lattice at 1/3 filling
• Anomalous Electrical Transport in the Kagome Magnet YbFe${}_6$Ge${}_6$
• A density-wave-like transition in the polycrystalline V3Sb2 sample with bilayer kagome lattice
• Perspective: imaging atomic step geometry to determine surface terminations of kagome materials and beyond
• Magnetoresistance signature of two-dimensional electronic states in Co${}_3$Sn${}_2$S${}_2$
• Three-dimensional higher-order saddle points induced flat bands in Co-based kagome metals
• Flat bands and temperature-driven phase transition in quasi-one-dimensional zigzag chains
• Spin excitations in the kagome-lattice metallic antiferromagnet Fe${}_{0.89}$Co${}_{0.11}$Sn
• Kagome KMn${}_3$Sb${}_5$ metal: Magnetism, lattice dynamics, and anomalous Hall conductivity
• Kagome surface states and weak electronic correlation in vanadium-kagome metals
• Nanoscale visualization of the thermally-driven evolution of antiferromagnetic domains in FeTe thin films
• Intriguing kagome topological materials
• Electrical and thermal transport properties of kagome metals AV${}_3$Sb${}_5$ (A=K, Rb, Cs)
• High quality epitaxial thin films and exchange bias of antiferromagnetic Dirac semimetal FeSn
• Simultaneous development of antiferromagnetism and local symmetry breaking in a kagome magnet (Co${}_{0.45}$Fe${}_{0.55}$)Sn
• Higher-Order Van Hove Singularities in Kagome Topological Bands
• A Recipe for Flat Bands in Pyrochlore Materials: A Chemist's Perspective
• Electronic and dynamical properties of cobalt monogermanide CoGe phases under pressure
• Electronic Correlation Effects on Stabilizing a Perfect Kagome Lattice and Ferromagnetic Fluctuation in LaRu${}_3$Si${}_2$
• Observation of a flat and extended surface state in a topological semimetal
• Optical anisotropy of the kagome magnet FeSn: Dominant role of excitations between kagome and Sn layers
• Topological magnon in exchange frustration driven incommensurate spin spiral of a kagome lattice YMn${}_6$Sn${}_6$
• $T_3$Pb${}_{2}C{h}_2$ ($T$=Pd,Pt and $Ch$=S,Se) with transition metal kagome net: Dynamical properties, phonon nodal line, phonon surface states, and chiral phonons
• Designing single and degenerate flat bands in the kagome lattice with long-range hopping
• Doping induced multiferroicity and quantum anomalous Hall effect in $\alpha$-In${}_2$Se${}_3$ thin films
• Topological two-body bands in a multiband Hubbard model
• Interplay between strong correlations and electronic topology in the underlying kagome lattice of Na2/3CoO2
• Coherent phonon and unconventional carriers in the magnetic kagome metal Fe${}_3$Sn${}_2$
• Engineering a pure Dirac regime in ZrTe${}_5$
• Loop Current Order on the Kagome Lattice
• Noncentrosymmetric Triangular Magnet CaMnTeO${}_6$: Strong Quantum Fluctuations and Role of s0 vs. s2 Electronic States in Competing Exchange Interactions
• Chemical enhancement of superconductivity in LaRu3Si2 with mode-selective coupling between kagome phonons and flat bands
• Electronic States and Anomalous Hall Effect in Strongly Correlated Topological Systems
• Electric control of two-dimensional Van Hove singularity in oxide ultra-thin films
• Lattice dynamics study of electron-correlation-induced charge density wave in antiferromagnetic kagome metal FeGe
• Manipulation of topology by electric field in breathing kagome lattice
• High-order van Hove singularities and nematic instability in the kagome superconductor CsTi${}_3$Bi${}_5$
• Correlated physics in an artificial triangular anti-dot lattice
• Hund flat band in a frustrated spinel oxide
• Discovery of terahertz-frequency orbitally-coupled magnons in a kagome ferromagnet
• Multiple magnetic transitions and complex magnetic structures in Fe${}_2$SiSe${}_4$ with the sawtooth lattice
• Encoding innumerable charge density waves of FeGe into polymorphs of LiFe6Ge6
• Nonlinear optical response in kagome lattice with inversion symmetry breaking
• Engineering two-dimensional kagome topological insulator from porous graphene
• The electronic structure of intertwined kagome, honeycomb, and triangular sublattices of the intermetallics MCo${}_2$Al${}_9$
• Atomic Layer Molecular Beam Epitaxy of Kagome Magnet RMn${}_6$Sn${}_6$ (R = Er, Tb) Thin Films
• Quantum Anomalous Hall Effect in $d$-Electron Kagome Systems: Chern Insulating States from Transverse Spin-Orbit Coupling
• van Hove Singularity-Driven Emergence of Multiple Flat Bands in Kagome Superconductors
• Double-layer Kagome Metals Pt3Tl2 and Pt3In2
• Correlation stabilized ferromagnetic MnRuAs with distorted kagome lattice
• Stacking-Dependent Van Hove Singularity Shifts in Three-Dimensional Charge Density Waves of Kagome Metals AV${}_3$Sb${}_5$ (A = K, Rb, Cs)
• Emergent topology of flat bands in a twisted bilayer $\alpha$-$T_3$ lattice
• Anomalous magnetoresistance in an antiferromagnetic Kagome semimetal heterostructures
• Successive orthorhombic distortions in kagome metals by molecular orbital formation
• The "Sign problem" of the 3rd order anomalous Hall effect in topological magnetic materials
• Pinch-point spectral singularity from the interference of topological loop states
• Reactivity of ultra-thin Kagome Metal FeSn towards Oxygen and Water
• Evidence of Mott Insulator with Thermally Induced Melting Behavior in Kagome Compound Nb3Cl8
• Observation of Resonance of Kagome Flat Band Doublet
• Superconductivity and Electron Correlations in Kagome Metal LuOs3B2
• Strongly Entangled Kondo and Kagome Lattices and the Emergent Magnetic Ground State in Heavy-Fermion Kagome Metal YbV${}_6$Sn${}_6$
• Coexisting Kagome and Heavy Fermion Flat Bands in YbCr${}_6$Ge${}_6$
• Evolution of the Chern Gap in Chern Magnet HoMn${}_6$Sn${}_{6-x}$Ge${}_x$
• Symmetry Enhanced Unconventional Spin Current Anisotropy in a Collinear Antiferromagnet
• Pressure-induced superconductivity in flat-band Kagome compounds Pd${}_3$P${}_2$(S${}_{1-x}$Se${}_x$)${}_8$
• Identifying Instabilities with Quantum Geometry in Flat Band Systems
• Optical Signature of Flat Bands in Topological Hourglass Semimetal Nb3SiTe6
• Exploring strong electronic correlations in the breathing kagome metal Fe${}_3$Sn
• Symmetry-broken ground state and phonon mediated superconductivity in Kagome CsV${}_3$Sb${}_5$
• Anisotropic response of defect bound states to magnetic field in epitaxial FeSn films
• Unconventional spin transport in strongly correlated kagome systems
• Unconventional transport properties in systems with triply degenerate quadratic band crossings
• Multiple topological corner states in the continuum of extended kagome lattice
• Magnetic field-induced momentum-dependent symmetry breaking in a kagome superconductor
• Emergent dynamical Kondo coherence and competing magnetic order in a correlated kagome flat-band metal CsCr6Sb6
• Topological Aspects of Dirac Fermions in a Kagomé Lattice
• DFT+U+V Study of Magnetic Ordering in Single-Layer Pentahexoctite: Implications for Magnetic Device Platforms
• Topological Degeneracy Induced Flat Bands in two-Dimensional Holed Systems
• Magnetism of kagome metals $\left({\text{Fe}}_{1-x}{\text{Co}}_x\right)\text{Sn}$ studied by $\mu$SR
• Logarithmic Criticality in Transverse Thermoelectric Conductivity of the Ferromagnetic Topological Semimetal CoMnSb
• Dichotomy of flat bands in the van der Waals ferromagnet Fe${}_5$GeTe${}_2$
• Imprinting electrically switchable scalar spin chirality by anisotropic strain in a Kagome antiferromagnet
• Non-Abelian line graph: A generalized approach to flat bands
• Correlation-driven non-trivial phases in single bi-layer Kagome intermetallics
• Crystal structure, properties and pressure-induced insulator-metal transition in layered kagome chalcogenides
• Spin-orbit quantum impurity in a topological kagome magnet
• Role of On-site and Inter-site Coulomb Interactions in KV${}_3$Sb${}_5$: A first-principles DFT+$U$+$V$ study
• Electronic and optical properties of ternary kagome Rb2Ni3S4: a density functional study
• Evolution of Magnetoresistance in the magnetic topological semimetals NdSbxTe2-x
• Robust Orbital-Selective Flat Bands in Transition-Metal Oxychlorides
• Evolution of electronic and magnetic properties in Mn- and Co-alloyed ferromagnetic kagome metal Fe3Sn2
• Emergent Spin-Singlet Pairing in the Frustrated Kagome Metal Sc${}_3$Mn${}_3$Al${}_7$Si${}_5$
• Magnetic response and antiferromagnetic correlations in strained kagome ribbons
• Epitaxial growth and magneto-transport properties of kagome metal FeGe thin films
• Engineering correlated Dirac fermions and flat bands on SiC with transition-metal adatom lattices
• Magnetic fluctuations near the Van Hove singularity in the kagome-lattice Hubbard model at finite doping
• Singular flat bands in three dimensions: Landau level spreading, quantum geometry, and Weyl reconstruction
• Site-selective correlations in interacting "flat-band" quasicrystals
• Effect of superconductivity by Nb and V substitution in kagome CaPd5
• Evolution from Topological Dirac Metal to Flat-band-Induced Antiferromagnet in Layered KxNi4S2 (0<=x<=1)
• Nature of magnetic exchange interactions in kagome antiferromagnets FeGe and FeSn
• Evidence for strong electron correlations in a non-symmorphic Dirac semimetal
• Revealing magnetism in the distorted kagome $R$Ti${}_3$Bi${}_4$ ($R$ = Nd, Sm, Gd) via ARPES and XMCD
• Computational prediction of ferromagnetic AT6X6 kagome compounds