{
  "abstract": "Electric hidden unconventional collinear magnetism, in which a perpendicular electric field (\\(\\mathcal{E}_z\\)) lifts the \\(\\mathcal{PT}\\)-enforced degeneracy and selectively releases the hidden crystallographic constraints in conventional 2D antiferromagnets to drive emergent magnetic phases, has remained largely unexplored. Here we establish a complete symmetry classification of all 88 collinear spin layer groups (cSLGs) compatible with conventional \\(\\mathcal{PT}\\)-symmetric antiferromagnets, and show that the \\(\\mathcal{E}_z\\) drives the system into three distinct classes of unconventional collinear magnetism: type-IV magnetism (Class-I, 23 cSLGs), altermagnetism (Class-II, 34 cSLGs), and fully compensated ferrimagnetism (Class-III, 31 cSLGs). We illustrate these categories using the most common and feasibly exfoliable 2D candidate materials. These include Sr$_2$CaCr$_2$P$_2$O$_9$ and Sr$_2$CaCr$_2$As$_2$O$_9$ (Class-I), BaMnGe and MnPS$_3$ (Class-II), and Sr$_3$Fe$_2$O$_5$Cl$_2$ and bilayer MnBi$_2$Te$_4$ (Class-III). We further demonstrate that the \\(\\mathcal{E}_z\\) generates distinctly different spin-splitting fingerprints across the three classes, yielding distinct spin-dependent responses: the electric Hall effect in Class-I, spin-polarized transport in Class-II, and the electric reversible magneto-optical Kerr effect in Class-III. Our work not only closes a complete internal cycle from conventional to unconventional collinear magnetism in 2D antiferromagnets, but also establishes a viable all-electrical compensated magnetism platform and control scheme for future spintronic applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.25186",
  "author_total": 5,
  "authors": [
    {
      "name": "Mu Tian"
    },
    {
      "name": "Fanxian Pei"
    },
    {
      "name": "Zhi-Ming Yu"
    },
    {
      "name": "Yugui Yao"
    },
    {
      "name": "Run-Wu Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dydv2nhh0kkf8.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.25186",
  "fulltext_url": null,
  "id": "dydv2nhh0kkf8",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.25186",
  "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"
    ],
    [
      "openalex",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7223023076",
  "pdf_url": "https://arxiv.org/pdf/2610.25186",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dydv2nhh0kkf8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.25186",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.25186"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Electric Hidden Unconventional Collinear Magnetism in 2D \\(\\mathcal{PT}\\)-Symmetric Antiferromagnets",
  "title_text": "Electric Hidden Unconventional Collinear Magnetism in 2D 𝒫𝒯-Symmetric Antiferromagnets",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/dydv2nhh0kkf8",
  "venue": "arXiv",
  "versions": []
}