{
  "abstract": "The pursuit of high-performance magnetostrictive materials is crucial for advancing technologies in sensing, actuation, and microelectromechanical systems. Although pronounced magnetostrictive effects have been observed in a few ferromagnets, a systematic exploration of magnetostriction across a broader range of antiferromagnets remains limited. Here, we report the observation of large magnetostriction in the kagome antiferromagnet YMn6Sn6. Under a magnetic field, the system undergoes a field-induced evolution from a helical magnetic ground state toward a collinear field-polarized state, accompanied by a large anisotropic lattice strain and a substantial volume magnetostriction exceeding 400 ppm at room temperature. Remarkably, the magnetostrictive response remains nearly fully reversible up to 9 T with nearly hysteresis-free behavior, effectively minimizing the energy dissipation commonly associated with domain-wall pinning. Combined experimental measurements and theoretical calculations reveal that the large, nearly hysteresis-free magnetostriction originates from the competition between intralayer ferromagnetic and interlayer exchange interactions. This exchange-driven magnetoelastic coupling further gives rise to a strongly direction-dependent lattice distortion pathway. This work establishes kagome helimagnets as a tunable platform for low-dissipation magnetoelastic functionalities and responsive magnetomechanical applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.00887",
  "author_total": 8,
  "authors": [
    {
      "name": "Jie Du"
    },
    {
      "name": "Liang Yao"
    },
    {
      "name": "Hang Li"
    },
    {
      "name": "Xiaodong Zhou"
    },
    {
      "name": "Yuan Yao"
    },
    {
      "name": "Xuekui Xi"
    },
    {
      "name": "Yong-Chang Lau"
    },
    {
      "name": "Wenhong Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0a1bz6mc8xvt6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.00887",
  "fulltext_url": null,
  "id": "0a1bz6mc8xvt6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.00887",
  "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",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7206212833",
  "pdf_url": "https://arxiv.org/pdf/2609.00887",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0a1bz6mc8xvt6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.00887",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.00887"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Large Exchange Magnetostriction in a Kagome Antiferromagnet at Room Temperature",
  "title_text": "Large Exchange Magnetostriction in a Kagome Antiferromagnet at Room Temperature",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/0a1bz6mc8xvt6",
  "venue": "arXiv",
  "versions": []
}