{
  "abstract": "Ce$_2$Te$_5$ is a layered $f$-electron van der Waals magnet in which reduced dimensionality and inequivalent Ce sites give rise to competing magnetic interactions. We investigate its magnetic ground state using muon spin relaxation ($μ$SR), neutron powder diffraction (NPD), and inelastic neutron scattering (INS). Zero-field $μ$SR reveals an onset of static magnetism below $T_{\\mathrm{C}} = 5.0(1)$~K, followed by an additional anomaly in the internal field at $T_{\\mathrm{2}} = 2.3(2)$~K, consistent with features observed in bulk thermodynamic and transport measurements. In contrast, NPD data collected between $0.05-8$~K reveal a single long-range ordered magnetic phase below $T_{\\mathrm C}$, with the magnetic Bragg intensities vanishing at $T_{\\mathrm C}$ with no evidence for additional structural or magnetic phase transitions down to base temperature. The ordered state is characterized by a commensurate propagation vector $\\mathbf{k}=(0,0,0)$ and ferromagnetic alignment of Ce moments along the crystallographic $b$ axis. Remarkably, only one of the two crystallographically distinct Ce sites carries an ordered moment of $\\sim 0.85(3)~μ_{\\mathrm B}$ per Ce at 0.05~K. INS measurements establish the crystal electric field (CEF) energy scale of Ce$^{3+}$, revealing low-lying excitations at 7.94 and 21.46~meV and a Kramers doublet ground state with strong single-ion anisotropy. These results demonstrate that Ce$_2$Te$_5$ undergoes a single symmetry-breaking magnetic transition, while additional low-temperature anomalies reflect subtle modifications of the ordered state driven by competing interactions and CEF effects.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.15815",
  "author_total": 13,
  "authors": [
    {
      "name": "Rajesh Tripathi"
    },
    {
      "name": "D. T. Adroja"
    },
    {
      "name": "C. Ritter"
    },
    {
      "name": "Leandro Liborio"
    },
    {
      "name": "Manuel dos Santos Dias"
    },
    {
      "name": "Leon Petit"
    },
    {
      "name": "D. Khalyavin"
    },
    {
      "name": "Yu Liu"
    },
    {
      "name": "T. Shiroka"
    },
    {
      "name": "M. Aouane"
    },
    {
      "name": "S. Langridge"
    },
    {
      "name": "S. Patil"
    },
    {
      "name": "Eric D. Bauer"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4ap2yy5b0jgs4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.15815",
  "fulltext_url": null,
  "id": "4ap2yy5b0jgs4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.15815",
  "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.str-el"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.15815",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4ap2yy5b0jgs4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.15815",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.15815"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Hidden Magnetic Complexity Within a Simple van der Waals Ferromagnet Ce$_2$Te$_5$",
  "title_text": "Hidden Magnetic Complexity Within a Simple van der Waals Ferromagnet Ce_2Te_5",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/4ap2yy5b0jgs4",
  "venue": "arXiv",
  "versions": []
}