{
  "abstract": "The anomalous Hall effect (AHE) reported in epitaxial RuO2/TiO2 has been attributed to a strain-stabilized magnetic state, but strain can be entangled with Ru-Ti intermixing and interfacial charge redistribution, which can produce Ti3+ and potentially localized moments. Here, we disentangle these contributions using Ti-alloyed RuO2 heterostructures in which abundant Ti3+ states are retained while epitaxial strain is independently changed. The strained and relaxed films have nearly identical Ti/Ru compositions and comparable Ti3+ fractions, yet a pronounced nonlinear AHE appears only in the coherently strained film, while the relaxed heterostructure exhibits an almost linear Hall response. Spectroscopic ellipsometry further shows that the AHE-active strained state is accompanied by a reconstruction of the itinerant electronic response, including enhanced metallicity and longer carrier relaxation times. These results show that Ti3+ formation alone is insufficient to generate the anomalous Hall state and identify epitaxial strain, through its modification of the itinerant RuO2 electronic structure, as the dominant control parameter.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18059",
  "author_total": 10,
  "authors": [
    {
      "name": "S. G. Jeong"
    },
    {
      "name": "A. Santhosh"
    },
    {
      "name": "S. Lee"
    },
    {
      "name": "S. Sheikh"
    },
    {
      "name": "U. M. Jayathilake"
    },
    {
      "name": "T. -L. Lee"
    },
    {
      "name": "T. Low"
    },
    {
      "name": "A. X. Gray"
    },
    {
      "name": "S. A. Chambers"
    },
    {
      "name": "B. Jalan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4b55pvr3nx348.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18059",
  "fulltext_url": null,
  "id": "4b55pvr3nx348",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.18059",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.18059",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4b55pvr3nx348.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18059",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18059"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Disentangling Strain and Ti3+ Contributions to the Anomalous Hall Effect in Epitaxial RuO2 Films",
  "title_text": "Disentangling Strain and Ti3+ Contributions to the Anomalous Hall Effect in Epitaxial RuO2 Films",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/4b55pvr3nx348",
  "venue": "arXiv",
  "versions": []
}