{
  "abstract": "Altermagnets are unconventional spin split magnets arising from the zero spin-orbit coupled limit. They host a magnetic multipolar order parameter yet direct real-space observation of these multipoles has remained elusive. Here we use polarized-neutron diffraction to reconstruct the three-dimensional magnetization density of the prototypical altermagnet MnF$_2$. By exploiting symmetry-selective magnetic reflections, we separate the dominant spherical Mn$^{2+}$ contribution from the much weaker anisotropic Mn magnetization and the covalent spin polarization of the fluorine ligands. The reconstructed spin density reveals a finite fluorine ion moment together with an anisotropic Mn magnetization consistent with the symmetry-allowed altermagnetic rank-5 magnetic multipole $O_{52}$(magnetic triacontadipole). These results provide direct real-space evidence of ferroic multipolar order in an altermagnet and establish polarized-neutron diffraction as a powerful probe of hidden magnetic multipoles in quantum materials.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.29089",
  "author_total": 12,
  "authors": [
    {
      "name": "Iurii Kibalin"
    },
    {
      "name": "Dalila Bounoua"
    },
    {
      "name": "José A. Rodriguez Velamazán"
    },
    {
      "name": "Oscar Fabelo"
    },
    {
      "name": "Navid Qureshi"
    },
    {
      "name": "Quentin Faure"
    },
    {
      "name": "Philippe Bourges"
    },
    {
      "name": "Victor Balédent"
    },
    {
      "name": "Jian-Rui Soh"
    },
    {
      "name": "Jeffrey Rau"
    },
    {
      "name": "Paul McClarty"
    },
    {
      "name": "Arsen Gukasov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6fzp7qz3jvvct.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29089",
  "fulltext_url": null,
  "id": "6fzp7qz3jvvct",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29089",
  "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"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7204883575",
  "pdf_url": "https://arxiv.org/pdf/2608.29089",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6fzp7qz3jvvct.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29089",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29089"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Real-space manifestation of ferroic multipoles in altermagnetic MnF$_2$",
  "title_text": "Real-space manifestation of ferroic multipoles in altermagnetic MnF_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/6fzp7qz3jvvct",
  "venue": "arXiv",
  "versions": []
}