{
  "abstract": "Transition metal dihalides are promising magnetic van der Waals materials because of their structural simplicity, chemical stability, and compatibility with nanofabrication. While magnetic order in these systems is typically associated with bulk-like monolayers, its relation to interfacial phases remains largely unexplored. Here we show that in CoBr2 grown on Au(111), long-range magnetic order already emerges in a structurally distinct interfacial precursor phase, prior to the formation of the bulk-like monolayer. During growth, this phase evolves into the monolayer, accompanied by a transition from molecular-like states to semiconducting behavior. Spin-resolved STM reveals an inhomogeneous in-plane magnetic response that is locally suppressed by point defects, whereas macroscopic XMCD demonstrates robust long-range order with pronounced in-plane anisotropy. These results establish that long-range magnetic order in CoBr2 does not require an ideal bulk-like monolayer but can emerge from interfacial phases with distinct electronic and structural properties, enabling magnetism beyond the monolayer limit.",
  "abstract_shown": true,
  "affiliations": [
    "Centro de Física de Materiales (CSIC/UPV-EHU), 20018 Donostia-San Sebastian, Spain",
    "Christine Technologies Inc., Sacramento, California 95811, United States",
    "Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain",
    "Departamento de Física de la Materia Condensada, Universidad de Zaragoza, 50009 Zaragoza, Spain",
    "Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, 50018 Zaragoza, Spain",
    "Instituto de Física del Litoral, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Universidad Nacional del Litoral (IFIS-Litoral, CONICET-UNL), 3000 Santa Fe, Argentina",
    "CIC nanoGUNE-BRTA, 20018 Donostia-San Sebastian, Spain",
    "Synchrotron SOLEIL, 91190 Saint-Aubin, France",
    "FZU - Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague 6, Czech Republic"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Samuel Kerschbaumer",
      "orcid": "0000-0001-6099-2265"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "David Serrate",
      "orcid": "0000-0002-3260-9641"
    },
    {
      "affs": [
        0,
        4,
        5
      ],
      "name": "Adriana Elizabet Candia"
    },
    {
      "affs": [
        0
      ],
      "name": "Andrea Aguirre"
    },
    {
      "affs": [
        6
      ],
      "name": "Danilo Longo"
    },
    {
      "affs": [
        7
      ],
      "name": "Fadi Choueikani"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Jorge Lobo-Checa",
      "orcid": "0000-0003-2698-2543"
    },
    {
      "affs": [
        8
      ],
      "name": "Pavel Jelínek",
      "orcid": "0000-0002-5645-8542"
    },
    {
      "affs": [
        0
      ],
      "name": "Maxim Ilyn"
    },
    {
      "affs": [
        0
      ],
      "name": "Celia Rogero",
      "orcid": "0000-0002-2812-8853"
    },
    {
      "affs": [
        0
      ],
      "name": "Sebastien E. Hadjadj",
      "orcid": "0000-0002-6045-574X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/49h6vm79atx6q.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.nanolett.6c03267",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13721144/",
  "id": "49h6vm79atx6q",
  "issns": [
    "1530-6984",
    "1530-6992"
  ],
  "landing_url": "https://doi.org/10.1021/acs.nanolett.6c03267",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Letter"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7222932225",
  "pdf_url": null,
  "pmcid": "PMC13721144",
  "pmid": "42949395",
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/49h6vm79atx6q.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:21:53Z",
      "native_id": "PMC13721144",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acs.nanolett.6c03267"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|2D Materials and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Magnetism beyond the Monolayer: Long-Range Order in an Interfacial Phase of CoBr2",
  "title_text": "Magnetism beyond the Monolayer: Long-Range Order in an Interfacial Phase of CoBr2",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:21:53Z",
  "url": "https://research.draconitic.com/paper/49h6vm79atx6q",
  "venue": "Nano Letters",
  "versions": []
}