{
  "abstract": "Magnetic proximity effects in transition metal dichalcogenide (TMD)/2D-magnet heterostructures are often described in terms of the magnetization of the interfacial magnetic layer. Here, we show that this picture is sufficient to describe the neutral-exciton valley splitting of the TMD, but incomplete for its hole-doped electronic structure. We study a gate-tunable van der Waals heterostructure composed of monolayer WSe$_2$ in direct contact with trilayer CrI$_3$. By combining spatially and helicity-resolved reflection-contrast spectroscopy with magnetic circular dichroism, we identify two distinct magnetic domains in the trilayer CrI$_3$: one with purely antiferromagnetic interlayer coupling and one with a mixed antiferromagnetic (AFM)/ferromagnetic~(FM) coupling. In both domains, the sign of the neutral-exciton valley splitting of WSe$_2$ switches with the magnetization reversal of the adjacent CrI$_3$ layer. In contrast, helicity-resolved positive-trion spectroscopy of WSe$_2$ reveals a qualitatively different response. While the AFM domain shows a strongly helicity-selective trion resonance, the mixed AFM/FM domain exhibits trion resonances in both helicities. This behavior disappears when all CrI$_3$ layers are aligned in a parallel magnetization direction. Our results demonstrate that charged excitons are sensitive to the full layer-resolved magnetic sequence of the adjacent 2D-magnet, revealing magnetic proximity beyond the interface.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.19582",
  "author_total": 11,
  "authors": [
    {
      "name": "Natalie Kuhn"
    },
    {
      "name": "Marc Schütte"
    },
    {
      "name": "Joachim Emming"
    },
    {
      "name": "Felix Hellenkamp"
    },
    {
      "name": "Leo Dreyer"
    },
    {
      "name": "Frank Volmer"
    },
    {
      "name": "Kenji Watanabe"
    },
    {
      "name": "Takashi Taniguchi"
    },
    {
      "name": "Lutz Waldecker"
    },
    {
      "name": "Christoph Stampfer"
    },
    {
      "name": "Bernd Beschoten"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5fca7ma1g36hy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.19582",
  "fulltext_url": null,
  "id": "5fca7ma1g36hy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.19582",
  "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.mtrl-sci"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7222182806",
  "pdf_url": "https://arxiv.org/pdf/2610.19582",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5fca7ma1g36hy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2610.19582",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.19582"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Magnetic proximity beyond the interface: Layer-sequence-dependent exchange in WSe$_2$/CrI$_3$ heterostructures",
  "title_text": "Magnetic proximity beyond the interface: Layer-sequence-dependent exchange in WSe_2/CrI_3 heterostructures",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/5fca7ma1g36hy",
  "venue": "arXiv",
  "versions": []
}