ArticleNature communications2024
Emergent flat band and topological Kondo semimetal driven by orbital-selective correlations.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Interaction-driven flat band and charge order in FeScience advances · 2026Article
- Spin excitations and flat electronic bands in a Cr-based kagome superconductor.Nature communications · 2025Article
- Direct evidence of coupling between charge density wave and Kondo lattice in ferromagnet FeNature communications · 2025Article
- Emergence of flat bands and ferromagnetic fluctuations via orbital-selective electron correlations in Mn-based kagome metal.Nature communications · 2024Article
- Quantum criticality enabled by intertwined degrees of freedom.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
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Authors and funding
7 authors.
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Abstract
Flat electronic bands are expected to show proportionally enhanced electron correlations, which may generate a plethora of novel quantum phases and unusual low-energy excitations. They are increasingly being pursued in d-electron-based systems with crystalline lattices that feature destructive electronic interference, where they are often topological. Such flat bands, though, are generically located far away from the Fermi energy, which limits their capacity to partake in the low-energy physics. Here we show that electron correlations produce emergent flat bands that are pinned to the Fermi energy. We demonstrate this effect within a Hubbard model, in the regime described by Wannier orbitals where an effective Kondo description arises through orbital-selective Mott correlations. Moreover, the correlation effect cooperates with symmetry constraints to produce a topological Kondo semimetal. Our results motivate a novel design principle for Weyl Kondo semimetals in a new setting, viz. d-electron-based materials on suitable crystal lattices, and uncover interconnections among seemingly disparate systems that may inspire fresh understandings and realizations of correlated topological effects in quantum materials and beyond.
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