{
  "abstract": "We show that a class of pyrochlore materials provides a route to realize 3D Quantum Hall insulators, based on magnetic texture and flat band interference. We study itinerant electrons on a pyrochlore lattice Kondo-coupled to localized moments living on another interpenetrating pyrochlore lattice, with the moments forming a field-selected three-in/one-out texture. The noncoplanar texture generates complex spin-dependent hopping amplitudes and unequal local exchange energies, reconstructing the compact-localized parent flat bands into narrow bands separated by a global three-dimensional gap. The low-energy states are concentrated predominantly on kagome planes within the three-dimensional lattice, reflecting the combined effects of quantum interference and the texture-induced sublattice potential. When the lowest band is fully occupied, the response is characterized by a Chern triplet $\\mathbf{C}=(1,1,1)$ and reciprocal Hall vector $\\mathbf{G}_{\\mathrm{H}}=(2π/a)(1,1,1)$, giving $σ_{yz}=σ_{zx}=σ_{xy}=e^2/(ha)$. The quantized bulk Hall response enforces chiral surface spectral flow, visible as noncontractible Fermi loops at the surface. Our work opens a new direction in the search for three-dimensional quantum Hall physics in magnetic pyrochlore systems, and suggests a broad design principle based on the interplay of magnetic texture and flat-band interference.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.36199",
  "author_total": 3,
  "authors": [
    {
      "name": "Ze-Xun Lin"
    },
    {
      "name": "Robert-Jan Slager"
    },
    {
      "name": "Claudio Castelnovo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dyj9z2j8381xx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.36199",
  "fulltext_url": null,
  "id": "dyj9z2j8381xx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.36199",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3107|Topological Materials and Phenomena"
    ]
  ],
  "openalex": "W7224112061",
  "pdf_url": "https://arxiv.org/pdf/2610.36199",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dyj9z2j8381xx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.36199",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.36199"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Three-dimensional quantum Hall insulators in magnetic pyrochlore systems",
  "title_text": "Three-dimensional quantum Hall insulators in magnetic pyrochlore systems",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/dyj9z2j8381xx",
  "venue": "arXiv",
  "versions": []
}