{
  "abstract": "Spin-driven multiferroics owe their electric polarization to lattice distortions that follow the magnetic order, yet in incommensurate magnets symmetry normally forbids such a distortion at the fundamental magnetic wavevector, and the distortions themselves are rarely observed. Here we use half-polarized neutron scattering to show that the Y-type hexaferrite Ba$_{0.4}$Sr$_{1.6}$Mg$_2$Fe$_{12}$O$_{22}$ hosts, in its saturated high-field state, a magnetic modulation and a longitudinal lattice modulation at one and the same wavevector, locked in phase. The signature is a large nuclear-magnetic interference asymmetry, $r$ ~ 0.8, of the same sign at the two conjugate satellites and persisting to 275 K. The zone contrast and the field dependence of the satellite indicate an internal, field-induced longitudinal distortion. The modulated state coexists with the transverse-conical magnetoelectric phase and outlives it, revealing a fundamental-wavevector spin-lattice coupling in a magnetic field regime previously regarded as a simple ferrimagnet.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.17292",
  "author_total": 10,
  "authors": [
    {
      "name": "Oskar Stepančić"
    },
    {
      "name": "Annika Stellhorn"
    },
    {
      "name": "Emma Campillo"
    },
    {
      "name": "Kun Zhai"
    },
    {
      "name": "Niklas Ekström"
    },
    {
      "name": "A. Corani"
    },
    {
      "name": "D. Alba Venero"
    },
    {
      "name": "R. Cubitt"
    },
    {
      "name": "E. Blackburn"
    },
    {
      "name": "L. Shen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/68sm0a3k1tz4w.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.17292",
  "fulltext_url": null,
  "id": "68sm0a3k1tz4w",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.17292",
  "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",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "2504|Multiferroics and related materials"
    ]
  ],
  "openalex": "W7221748567",
  "pdf_url": "https://arxiv.org/pdf/2610.17292",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/68sm0a3k1tz4w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.17292",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.17292"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Phase-Coherent Spin and Lattice Modulations in a Y-type Hexaferrite",
  "title_text": "Phase-Coherent Spin and Lattice Modulations in a Y-type Hexaferrite",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/68sm0a3k1tz4w",
  "venue": "arXiv",
  "versions": []
}