{
  "abstract": "The Tellegen limit is the fundamental electromagnetic stability bound on magnetoelectric media. We show that nonlinear magnetoelectric coupling gives rise to a new Tellegen limit, which we term the \\textit{nonlinear Tellegen limit}. Unlike the linear Tellegen limit, which is fixed by material parameters, the nonlinear Tellegen limit is field-tunable -- a static electric or magnetic field drives the system toward electromagnetic instability at a material-specific critical field determined by the symmetry-allowed nonlinear magnetoelectric couplings and electromagnetic response. The approach to this limit is accompanied by a field-tunable linear birefringence, whose maximum is bounded by the nonlinear Tellegen limit -- beyond which the medium becomes electromagnetically unstable. We demonstrate the nonlinear Tellegen limit and the field-space stability phase diagram in two magnetically ordered material systems -- a $d$-wave altermagnet and an M-type hexagonal ferrite -- showing that the symmetry of the magnetic point group governs both the structure of the nonlinear magnetoelectric tensor and the resulting electromagnetic instability.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.10584",
  "author_total": 2,
  "authors": [
    {
      "name": "Abhinava Chatterjee"
    },
    {
      "name": "Nikhil Kalyanapuram"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fdmpb298q4ern.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.10584",
  "fulltext_url": null,
  "id": "fdmpb298q4ern",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.10584",
  "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",
      "physics.optics"
    ],
    [
      "openalex",
      "2504|Multiferroics and related materials"
    ]
  ],
  "openalex": "W7168325636",
  "pdf_url": "https://arxiv.org/pdf/2607.10584",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fdmpb298q4ern.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2607.10584",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.10584"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Nonlinear Tellegen limit",
  "title_text": "Nonlinear Tellegen limit",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/fdmpb298q4ern",
  "venue": "arXiv",
  "versions": []
}