{
  "abstract": "We investigate lattice relaxation and band structures of helical and alternating twisted trilayer WSe$_2$ and MoTe$_2$ using machine-learning force fields and large-scale ab initio calculations. Interference between the two bilayer moiré lattices generates a supermoiré lattice that, upon relaxation, reconstructs into a few dominant domain types with locally commensurate bilayer moiré lattices. Because the systems lack $C_{2z}$ symmetry, domains otherwise related by this symmetry become energetically and topologically distinct, unlike in twisted trilayer graphene. Band structure calculations show that the topmost valence bands originate from the $K$ ($K'$) valleys and carry domain-dependent valley Chern numbers. The resulting supermoiré lattice hosts a mosaic of topologically inequivalent domains, offering a platform for exploring correlated and topological physics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.30813",
  "author_total": 3,
  "authors": [
    {
      "name": "Hai Meng"
    },
    {
      "name": "Yang Xu"
    },
    {
      "name": "Fengcheng Wu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7ecr16v40y617.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.30813",
  "fulltext_url": null,
  "id": "7ecr16v40y617",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.30813",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7204960155",
  "pdf_url": "https://arxiv.org/pdf/2608.30813",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7ecr16v40y617.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2608.30813",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.30813"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Supermoiré Reconstruction and Topological Mosaics in Twisted Trilayer WSe$_2$ and MoTe$_2$",
  "title_text": "Supermoiré Reconstruction and Topological Mosaics in Twisted Trilayer WSe_2 and MoTe_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/7ecr16v40y617",
  "venue": "arXiv",
  "versions": []
}