{
  "abstract": "FeTe has long been regarded as a nonsuperconducting antiferromagnetic metal with trivial band topology, but recent advances in stoichiometry control have begun to challenge this picture. Here we use higher-order epitaxy on zinc-blende MnTe to stabilize near-stoichiometric FeTe with strongly suppressed interstitial Fe and a superconducting transition onset near 13 K. Angle-resolved photoemission spectroscopy reveals markedly enhanced quasiparticle coherence, well-defined Fe-derived hole bands, and a nearly two-dimensional Dirac-cone-like state near the Fermi level. First-principles calculations identify an inversion between odd- and even-parity bands, yielding nontrivial $Z_2$ topology and a Dirac surface state consistent with experiment. These results elucidate the intrinsic electronic structure of stoichiometric superconducting FeTe and provide evidence for nontrivial band topology, positioning FeTe/MnTe as a promising platform for exploring topological superconductivity.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.39161",
  "author_total": 17,
  "authors": [
    {
      "name": "Shiwu Su"
    },
    {
      "name": "Yu Liang"
    },
    {
      "name": "Tongrui Li"
    },
    {
      "name": "Zhen Wang"
    },
    {
      "name": "Yuzhe Wang"
    },
    {
      "name": "Xianglin Li"
    },
    {
      "name": "Sen Liao"
    },
    {
      "name": "Pengxu Ran"
    },
    {
      "name": "Jiexiong Sun"
    },
    {
      "name": "Shengtao Cui"
    },
    {
      "name": "Zhe Sun"
    },
    {
      "name": "Zhengtai Liu"
    },
    {
      "name": "Jishan Liu"
    },
    {
      "name": "Mao Ye"
    },
    {
      "name": "Jing Tao"
    },
    {
      "name": "Donglai Feng"
    },
    {
      "name": "Juan Jiang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0e7jd4352fp3j.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.39161",
  "fulltext_url": null,
  "id": "0e7jd4352fp3j",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.39161",
  "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.supr-con"
    ],
    [
      "openalex",
      "3107|Topological Materials and Phenomena"
    ]
  ],
  "openalex": "W7215039237",
  "pdf_url": "https://arxiv.org/pdf/2609.39161",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0e7jd4352fp3j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.39161",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.39161"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Spectroscopic Evidence for Nontrivial Band Topology in Superconducting FeTe/MnTe Heterostructure",
  "title_text": "Spectroscopic Evidence for Nontrivial Band Topology in Superconducting FeTe/MnTe Heterostructure",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/0e7jd4352fp3j",
  "venue": "arXiv",
  "versions": []
}