{
  "abstract": "Within the entire gamut of magnetostrictive, piezomagnetic, and ferromagnetic shape memory alloy systems, the striction effect is found to vary from a few tens of parts per million to a few percent. Here, we report the observation of an unprecedentedly large magnetic-field-induced lattice strain along the $c$ axis (more than 60-100% at 90 kOe field) in single crystals of orthorhombic $R$FeO$_3$ ($R$ = Dy, Ho) below their spin-reorientation transition temperature $T_{SR}$. However, the striction effect is two orders of magnitude smaller along the $a$ and $b$ axes. Like magnetostriction, the magnetodielectric effect is highly anisotropic and very large along the $c$ axis. Such gigantic striction and dielectric effects along the $c$ axis arise as a result of a magnetic-field-induced first-order structural phase transition which possibly stems from large spin-orbit coupling (and, thereby, enormous magnetocrystalline anisotropy). The observed colossal striction in rare-earth orthoferrites could open new opportunities for applications requiring large, reversible magnetic-field-induced strain.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.14731",
  "author_total": 6,
  "authors": [
    {
      "name": "Moumita Das"
    },
    {
      "name": "Arup Ghosh"
    },
    {
      "name": "Moumita Nandi"
    },
    {
      "name": "Arumugam Thamizhavel"
    },
    {
      "name": "Dipten Bhattacharya"
    },
    {
      "name": "Prabhat Mandal"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1qb9j2qggpdze.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.14731",
  "fulltext_url": null,
  "id": "1qb9j2qggpdze",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.14731",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cond-mat.other"
    ],
    [
      "openalex",
      "2504|Multiferroics and related materials"
    ]
  ],
  "openalex": "W7213326973",
  "pdf_url": "https://arxiv.org/pdf/2609.14731",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1qb9j2qggpdze.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.14731",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.14731"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Colossal magnetostriction effect in rare-earth orthoferrites",
  "title_text": "Colossal magnetostriction effect in rare-earth orthoferrites",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/1qb9j2qggpdze",
  "venue": "arXiv",
  "versions": []
}