Topological Quantum Materials with Kagome Lattice

Abstract

In this account, we will give an overview of our research progress on novel quantum properties in topological quantum materials with kagome lattice. Here, there are mainly two categories of kagome materials: magnetic kagome materials and nonmagnetic ones. On one hand, magnetic kagome materials mainly focus on the 3d transition-metal-based kagome systems, including Fe${}_3$Sn${}_2$, Co${}_3$Sn${}_2$S${}_2$, YMn6Sn6, FeSn, and CoSn. The interplay between magnetism and topological bands manifests vital influence on the electronic response. For example, the existence of massive Dirac or Weyl fermions near the Fermi level signicantly enhances the magnitude of Berry curvature in momentum space, leading to a large intrinsic anomalous Hall effect. In addition, the peculiar frustrated structure of kagome materials enables them to host a topologically protected skyrmion lattice or noncoplaner spin texture, yielding a topological Hall effect that arises from the realspace Berry phase. On the other hand, nonmagnetic kagome materials in the absence of longrange magnetic order include CsV3Sb5 with the coexistence of superconductivity, charge density wave state, and band topology and van der Waals semiconductor Pd${}_3$P${}_2$S${}_8$. For these two kagome materials, the tunability of electric response in terms of high pressure or carrier doping helps to reveal the interplay between electronic correlation effects and band topology and discover the novel emergent quantum phenomena in kagome materials.

arXiv comment10 pages,7 figures

References in corpus (41)

• Topological insulators and superconductors
• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Topological Hall effect in the A-phase of MnSi
• Colloquium: Topological Band Theory
• Chern semi-metal and Quantized Anomalous Hall Effect in HgCr2Se4
• Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
• High temperature fractional quantum Hall states
• CsV${}_3$Sb${}_5$: a ${\mathbb{Z}}_2$ topological kagome metal with a superconducting ground state
• Massive Dirac fermions in a ferromagnetic kagome metal
• Anomalous Hall effect in ferromagnetic semiconductors
• Magnetic Weyl Semimetal Phase in a Kagome Crystal
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Discovery of unconventional chiral charge order in kagome superconductor KV3Sb5
• Dirac fermions and flat bands in the ideal kagome metal FeSn
• Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co3Sn2S2
• Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions
• Roton pair density wave and unconventional strong-coupling superconductivity in a topological kagome metal
• Evidence for Magnetic Weyl Fermions in a Correlated Metal
• Discovery of a quantum limit Chern magnet TbMn6Sn6
• Competing electronic orders on Kagome lattices at van Hove filling
• Negative flat band magnetism in a spin-orbit coupled correlated kagome magnet
• 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
• Observation of Unconventional Charge Density Wave without Acoustic Phonon Anomaly in Kagome Superconductors AV3Sb5 (A=Rb,Cs)
• Discovery of charge density wave in a correlated kagome lattice antiferromagnet
• 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
• Charge density wave in kagome lattice intermetallic ScV6Sn6
• Rare earth engineering in RMn${}_6$Sn${}_6$ topological kagome magnets
• Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
• Near-room-temperature giant topological Hall effect in antiferromagnetic kagome metal YMn6Sn6
• In-plane magnetic field induced double fan spin structure with $\text{c}$-axis component in metallic kagome antiferromagnet YMn${}_6$Sn${}_6$
• Quantum transport evidence of topological band structures of kagome superconductor CsV3Sb5
• Charge density wave orders and enhanced superconductivity under pressure in the kagome metal CsV3Sb5
• Non-collinearity and spin frustration in the itinerant kagome ferromagnet Fe3Sn2
• Emerging chiral edge states from the confinement of a magnetic Weyl semimetal in Co${}_3$Sn${}_2$S${}_2$
• Spin excitations in metallic kagome lattice FeSn and CoSn
• Fermion-boson many-body interplay in a frustrated kagome paramagnet
• Kagome quantum anomalous Hall effect with high Chern number and large band gap
• Magnetic-field control of topological electronic response near room temperature in correlated Kagome magnets
• Evolution of ultra-flat band in van der Waals kagome semiconductor Pd3P2(S1-xSex)8

Cited by in corpus (21)

• Two-dimensional Kagome Materials: Theoretical Insights, Experimental Realizations, and Electronic Structures
• Intriguing kagome topological materials
• ErMn${}_6$Sn${}_6$: A Promising Kagome Antiferromagnetic Candidate for Room-Temperature Nernst Effect-based thermoelectrics
• Correlation stabilized ferromagnetic MnRuAs with distorted kagome lattice
• Coexisting Kagome and Heavy Fermion Flat Bands in YbCr${}_6$Ge${}_6$
• Anomalous magnetoresistance in an antiferromagnetic Kagome semimetal heterostructures
• Evidence of Mott Insulator with Thermally Induced Melting Behavior in Kagome Compound Nb3Cl8
• Exploring strong electronic correlations in the breathing kagome metal Fe${}_3$Sn
• Observation of unexpected band splitting and magnetically-induced band structure reconstruction in TbTi${}_3$Bi${}_4$
• Spin photonic topological metasurface based on kagome lattice and leaky-wave application
• Beyond kagome: $p$-bands in kagome metals
• Imprinting electrically switchable scalar spin chirality by anisotropic strain in a Kagome antiferromagnet
• Magnetization-Tunable Topological Phase Transitions in Ferromagnetic Kagome Monolayers of Co${}_3$X${}_3$Y${}_2$ ($X=\mathrm{Sn},\mathrm{Pb}$; $Y=\mathrm{S},\mathrm{Se}$)
• Synergistic doping and stabilization of magnetically tunable LnTi${}_3$(Sb,Sn)${}_4$ (Ln:Ce--Gd) kagome metals
• Magnetic and electric properties of the metallic kagome antiferromagnet CrRhAs
• Single crystal growth, structural and physical properties, and absence of a charge density wave in Ti_{0.85}Fe6Ge6
• Chern insulators and topological flat bands in cavity-embedded kagome systems
• Nature of magnetic exchange interactions in kagome antiferromagnets FeGe and FeSn
• Evolution from Topological Dirac Metal to Flat-band-Induced Antiferromagnet in Layered KxNi4S2 (0<=x<=1)
• Stabilizing Itinerant Electrons in a Corner-Sharing Kagomé Oxide Nd4Os3ZnO14
• Spin order and excitations in the collinear kagome antiferromagnet Y${}_{0.5}$Fe${}_3$Sn${}_3$