{
  "abstract": "Atomic-level insight into structure, charge distribution, chemistry, and electronic states is essential for understanding emergent properties at oxide interfaces. Here, we leverage the quasi-strain-free anatase TiO2/LaAlO3 interface as an ideal model system to decouple intrinsic polar discontinuities from complex strain artifacts. By combining atomic-resolution electron energy loss spectroscopy with integrated differential phase contrast, we spatially map the electronic states associated with the formation of a two-dimensional electron gas (2DEG). This correlative approach enables the direct real-space disentanglement of intrinsic 2DEG-related states from extrinsic Ti3+ defect states. Supported by density functional theory and inelastic scattering simulations, we reveal a physical superposition: the intrinsic polar electronic reconstruction anchors metallic states directly at the boundary, while oxygen vacancies accumulate further into the film, acting as a donor reservoir. This work not only resolves long-standing ambiguities regarding oxide interfacial conductivity but also provides a robust, transferable framework for related material systems.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Electron Microscopy and Nanoanalysis, Graz University of Technology, Steyrergasse 17, Graz 8010, Austria",
    "Graz Centre for Electron Microscopy, Steyrergasse 17, Graz 8010, Austria",
    "University Service Centre for Transmission Electron Microscopy, TU Wien, Stadionallee 2, Wien 1020, Vienna, Austria",
    "Area Science Park, Padriciano 99, Trieste 34149, Friuli-Venezia Giulia, Italy",
    "CNR-IOM Istituto Officina dei Materiali, TASC Laboratory, Area Science Park, Strada statale 14 km 163.5, Trieste 34149, Friuli-Venezia Giulia, Italy"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Michael Oberaigner",
      "orcid": "0000-0002-3391-8745"
    },
    {
      "affs": [
        2
      ],
      "name": "Manuel Ederer"
    },
    {
      "affs": [
        3
      ],
      "name": "Sandeep K. Chaluvadi",
      "orcid": "0000-0002-3689-3336"
    },
    {
      "affs": [
        4,
        3
      ],
      "name": "Pasquale Orgiani",
      "orcid": "0000-0002-1082-9651"
    },
    {
      "affs": [
        3
      ],
      "name": "Regina Ciancio"
    },
    {
      "affs": [
        2
      ],
      "name": "Stefan Löffler"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Gerald Kothleitner"
    },
    {
      "affs": [
        0
      ],
      "name": "Daniel Knez",
      "orcid": "0000-0003-0755-958X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2zg11ws51e8z6.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.nanolett.6c01308",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13721177/",
  "id": "2zg11ws51e8z6",
  "issns": [
    "1530-6984",
    "1530-6992"
  ],
  "landing_url": "https://doi.org/10.1021/acs.nanolett.6c01308",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Letter"
    ],
    [
      "openalex",
      "2505|Electronic and Structural Properties of Oxides"
    ]
  ],
  "openalex": "W7221790576",
  "pdf_url": null,
  "pmcid": "PMC13721177",
  "pmid": "42949381",
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2zg11ws51e8z6.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:21:55Z",
      "native_id": "PMC13721177",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acs.nanolett.6c01308"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Electronic and Structural Properties of Oxides",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Atomic-Scale Mapping of an Emergent Interfacial Two-Dimensional Electron Gas at Anatase/LaAlO3",
  "title_text": "Atomic-Scale Mapping of an Emergent Interfacial Two-Dimensional Electron Gas at Anatase/LaAlO3",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:21:55Z",
  "url": "https://research.draconitic.com/paper/2zg11ws51e8z6",
  "venue": "Nano Letters",
  "versions": []
}