{
  "abstract": "We report the synthesis and physical properties of CdRuO$_3$, a nominal Ru$^{4+}$ $4d^4$ ilmenite with edge-sharing RuO$_6$ honeycomb layers. Powder X-ray diffraction establishes a crystallographically non-dimerized $R\\bar{3}$ structure with equivalent Ru-Ru bonds and a strongly distorted RuO$_6$ environment. The compacted-pellet resistivity is nonmetallic but non-Arrhenius, while the heat capacity contains a finite residual linear term. Matched nonmagnetic calculations show that PBE+$U$ without spin-orbit coupling remains metallic or semimetallic up to $U_{\\mathrm{eff}} = 3$ eV, whereas PBE+SOC+$U$ exhibits a strong $U_{\\mathrm{eff}}$ dependence and opens a direct gap of approximately 55 meV at $Γ$ for $U_{\\mathrm{eff}} = 2.5$ eV. Spin-orbit coupling therefore markedly enhances the correlation sensitivity of the non-cubic Ru $t_{2g}$ manifold. After subtraction of a dilute Curie-Weiss defect contribution, the susceptibility remains weakly nonmonotonic and is inconsistent with both an ordinary Pauli response and independent spin-only $S = 1$ moments. CdRuO$_3$ thus realizes the non-dimerized structural branch predicted for ruthenium ilmenites, but not a simple robust multiorbital metal.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Journal of Physics: Condensed Matter, 38, 375602 (2026)",
  "arxiv": "2609.06902",
  "author_total": 3,
  "authors": [
    {
      "name": "Yuya Haraguchi"
    },
    {
      "name": "Hayato Yatsuzuka"
    },
    {
      "name": "Hiroko Aruga Katori"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5xkw9j738wyfv.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.06902",
  "fulltext_url": null,
  "id": "5xkw9j738wyfv",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.06902",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.06902",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5xkw9j738wyfv.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2609.06902",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.06902"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Spin--orbit-enhanced correlation sensitivity and anomalous magnetic response in non-dimerized $4d^4$ ilmenite CdRuO$_3$",
  "title_text": "Spin--orbit-enhanced correlation sensitivity and anomalous magnetic response in non-dimerized 4d^4 ilmenite CdRuO_3",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/5xkw9j738wyfv",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/1361-648x/aea2fd",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}