{
  "abstract": "Magnon polarons, hybrid excitations arising from magnon-phonon coupling, were investigated in the van der Waals antiferromagnet FePS3 using magneto-Raman scattering measurements at temperatures ranging from 4 K to the vicinity of the Néel temperature ($T_\\mathrm{N}$ = 118 K). The lower Zeeman-split component of the magnon-like mode, tuned by the magnetic field toward the lower-energy phonon mode, exhibits an avoided crossing. The corresponding magnetic field decreases from approximately 13 T at 4 K to 5.6 T at 85 K, bringing the effect within reach of a standard laboratory magnet. A model of three coupled bosonic modes shows that the magnon-phonon coupling constant, approximately 2.7 cm$^{-1}$ at low temperatures, decreases significantly with increasing temperature, following a trend similar to the temperature-induced softening of the magnon mode. This decrease in magnon-phonon coupling is discussed in terms of a possible reduction in sublattice magnetization due to thermal fluctuations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.40968",
  "author_total": 5,
  "authors": [
    {
      "name": "A. Krajewska"
    },
    {
      "name": "J. Kierdaszuk"
    },
    {
      "name": "M. Dub"
    },
    {
      "name": "E. Karpierz-Marczewska"
    },
    {
      "name": "M. Potemski"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4dfa4b4qz7x1z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.40968",
  "fulltext_url": null,
  "id": "4dfa4b4qz7x1z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.40968",
  "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"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.40968",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4dfa4b4qz7x1z.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.40968",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.40968"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Temperature Evolution of Magnon-Polarons in the van der Waals Antiferromagnet FePS$_3$",
  "title_text": "Temperature Evolution of Magnon-Polarons in the van der Waals Antiferromagnet FePS_3",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/4dfa4b4qz7x1z",
  "venue": "arXiv",
  "versions": []
}