![]() Competing magnetic phases and fluctuation-driven scalar spin chirality in the kagome metal YMn 6Sn 6. Field-induced topological Hall effect and double-fan spin structure with a c-axis component in the metallic kagome antiferromagnetic compound YMn 6Sn 6. Quantum-limit Chern topological magnetism in TbMn 6Sn 6. Massive Dirac fermions in a ferromagnetic kagome metal. Theoretical prediction of a strongly correlated Dirac metal. Dirac fermions and flat bands in the ideal kagome metal FeSn. Giant and anisotropic many-body spin–orbit tunability in a strongly correlated kagome magnet. Cuprate superconductors as viewed through a striped lens. How to detect fluctuating stripes in the high-temperature superconductors. Our findings suggest that CDW in FeGe arises from the combination of electron-correlations-driven AFM order and van Hove singularities (vHSs)-driven instability possibly associated with a chiral flux phase 24, 25, 26, 27, 28, in stark contrast to strongly correlated copper oxides 1, 2 and nickelates 29, 30, 31, in which the CDW precedes or accompanies the magnetic order. 10, 11, 12, 13, 14, 15), enhances the AFM ordered moment and induces an emergent anomalous Hall effect 22, 23. The CDW in FeGe occurs at wavevectors identical to that of AV 3Sb 5 (refs. Here we report the discovery of CDW in the antiferromagnetic (AFM) ordered phase of kagome lattice FeGe (refs. Although CDW has been found in weakly electron-correlated non-magnetic AV 3Sb 5 ( A = K, Rb, Cs) 10, 11, 12, 13, 14, 15, it has not yet been observed in correlated magnetic-ordered kagome lattice metals 4, 16, 17, 18, 19, 20, 21. In 2D kagome lattice metals consisting of corner-sharing triangles, the geometry of the lattice can produce flat bands with localized electrons 3, 4, non-trivial topology 5, 6, 7, chiral magnetic order 8, 9, superconductivity and CDW order 10, 11, 12, 13, 14, 15. Recently, such rich phase diagrams have also been shown in correlated topological materials. A well-known example is the copper oxides, in which a charge density wave (CDW) is ordered well above and strongly coupled to the magnetic order to form spin-charge-separated stripes that compete with superconductivity 1, 2. Nature volume 609, pages 490–495 ( 2022) Cite this articleĪ hallmark of strongly correlated quantum materials is the rich phase diagram resulting from competing and intertwined phases with nearly degenerate ground-state energies 1, 2. Discovery of charge density wave in a kagome lattice antiferromagnet
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