{
  "abstract": "We show that the broad X-ray photoelectron lines of silicon oxide on silicon arise from a continuous statistical distribution of core-level binding energies. Statistical simulations spanning compositions from Si to SiO$_2$ reproduce the full extent of this broadening, reaching 5 eV for SiO$_{1.0}$ , in quantitative agreement with 0.23 nm layer-resolved spectra reconstructed from Ar$^+$ sputtering data. This continuous distribution blurs distinct spectral fingerprints of local structural motifs, thereby challenging conventional chemical state assignment in oxide X-ray photoelectron spectra.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.18769",
  "author_total": 5,
  "authors": [
    {
      "name": "Mikael Santonen"
    },
    {
      "name": "Sari Granroth"
    },
    {
      "name": "Johanna Laaksonen"
    },
    {
      "name": "Pekka Laukkanen"
    },
    {
      "name": "Johannes Niskanen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3q34pjs2c9fxa.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.18769",
  "fulltext_url": null,
  "id": "3q34pjs2c9fxa",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.18769",
  "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.dis-nn"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.18769",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3q34pjs2c9fxa.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2606.18769",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.18769"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.dis-nn",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Role of Local Structural Variation in X-ray Photoelectron Spectrum of Silicon Oxide Interfaces",
  "title_text": "Role of Local Structural Variation in X-ray Photoelectron Spectrum of Silicon Oxide Interfaces",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/3q34pjs2c9fxa",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/7yqf-r5fr",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}