{
  "abstract": "Mn$_3$Sn exhibits a complex magnetic phase diagram with multiple symmetry-breaking phenomena. Minute electron doping at the Mn site breaks the kagome lattice symmetry in Mn$_3$Sn. In this work, we exploited this to tune the order of the magnetic phase transition using magnetocaloric effect in Mn$_{3-x}$Co$_x$Sn single crystals. Pristine Mn$_3$Sn shows metallic behaviour with a spin-reorientation transition at 278 K, which shifts to 175 K upon Co doping. Additionally, Co doping also induces a weak-ferromagnetic transition near $\\approx 210$ K. The effect of Co doping results inverse to conventional magnetocaloric effect, with enhanced magnetic entropy change. Further, the scaled entropy change reveals a field-driven magnetic phase transition crossover from first order to second order in Mn$_{2.75}$Co$_{0.25}$Sn crystal. Based on experimental data, a new phase diagram is constructed, depicting the field evolution of various magnetic orders.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.16189",
  "author_total": 2,
  "authors": [
    {
      "name": "Shubhankar Paul"
    },
    {
      "name": "Chanchal Sow"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e86f22gvw0vrc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.16189",
  "fulltext_url": null,
  "id": "e86f22gvw0vrc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.16189",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "2504|Magnetic and transport properties of perovskites and related materials"
    ]
  ],
  "openalex": "W7221828438",
  "pdf_url": "https://arxiv.org/pdf/2610.16189",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e86f22gvw0vrc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.16189",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.16189"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Field-driven phase transition crossover in kagome antiferromagnet Mn$_{3-x}$Co$_x$Sn",
  "title_text": "Field-driven phase transition crossover in kagome antiferromagnet Mn_3−xCo_xSn",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/e86f22gvw0vrc",
  "venue": "arXiv",
  "versions": []
}