{
  "abstract": "Magnetic symmetry can lift spin degeneracy in momentum space without producing net magnetization, generating spin textures classified by their parity under momentum reversal. Even-parity textures have well established in altermagnets. Odd-parity spin textures have recently emerged in electronic bands of compensated magnets, but their counterpart in collective bosonic excitations remains experimentally unresolved. Magnons provide a natural setting for this extension because they carry spin angular momentum through insulating magnets without accompanying charge flow. Beyond realizing this missing state, a broader challenge is to program spin splitting with voltage at room temperature. Here we report room-temperature transport evidence for ferroelectric switching odd-parity magnon spin splitting in multiferroic BiFeO3. Symmetry analysis and spin-wave calculations reveal that the cycloidal chirality splits opposite-spin magnon branches with an odd-in-momentum dependence and sets the sign. Experimentally, an injected in-plane-polarized spin current generates an out-of-plane magnon spin component during propagation. This component exhibits the crystalline angular dependence predicted by theory and reverses upon ferroelectric switching, providing a transport fingerprint of the spin-split magnon state. We use the programmed magnon spin to drive deterministic field-free switching of a perpendicular ferromagnet and demonstrate XNOR logic-in-memory. Our results extend odd-parity spin splitting from fermionic electronic states to bosonic collective modes and establish nonvolatile electrical control at room temperature.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.24182",
  "author_total": 16,
  "authors": [
    {
      "name": "Yuhan Liang"
    },
    {
      "name": "Xingyu Yan"
    },
    {
      "name": "Bowen Hao"
    },
    {
      "name": "Ziye Zhu"
    },
    {
      "name": "Tianle Sui"
    },
    {
      "name": "Daniel Pharis"
    },
    {
      "name": "Xiaoxi Huang"
    },
    {
      "name": "Rakshit Jain"
    },
    {
      "name": "Tong Zhou"
    },
    {
      "name": "Di Yi"
    },
    {
      "name": "Wanjun Jiang"
    },
    {
      "name": "Pu Yu"
    },
    {
      "name": "Igor Žutić"
    },
    {
      "name": "Yuan-Hua Lin"
    },
    {
      "name": "Daniel C. Ralph"
    },
    {
      "name": "Tianxiang Nan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cbp0wx6j8tgn3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.24182",
  "fulltext_url": null,
  "id": "cbp0wx6j8tgn3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.24182",
  "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.mtrl-sci"
    ],
    [
      "arxiv",
      "physics.app-ph"
    ],
    [
      "openalex",
      "2504|Multiferroics and related materials"
    ]
  ],
  "openalex": "W7214056936",
  "pdf_url": "https://arxiv.org/pdf/2609.24182",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cbp0wx6j8tgn3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.24182",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.24182"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Ferroelectric switching of odd-parity magnon spin splitting",
  "title_text": "Ferroelectric switching of odd-parity magnon spin splitting",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/cbp0wx6j8tgn3",
  "venue": "arXiv",
  "versions": []
}