{
  "abstract": "Interface electronic states at perovskite oxide interfaces represent an important class of heterostructures that exhibit a wide range of functional properties. The circular photogalvanic effect (CPGE), which originates from microscopic inversion symmetry breaking and the resulting spin-orbit coupling, is a significant phenomenon observed in this system. In this study, we investigated the CPGE at amorphous-LaAlO₃/ SrTiO₃ (a-LAO/STO) interfaces under 450 nm, 532 nm, and 780 nm illumination. The CPGE photocurrent demonstrates gate-tunable characteristics, showing linear dependence on back-gate voltage (V G ) and exhibiting polarity reversal under negative V G . These effects arise from illumination-driven migration of oxygen vacancies and electrons. Under negative V G , the migration induces reversed asymmetry distribution of oxygen vacancies and electrons, leading to photocurrent direction reversal. The opposite migration of oxygen vacancies and electrons expands the width of photon-absorbing region, producing the observed linear V G dependence.",
  "abstract_shown": true,
  "affiliations": [
    "School of Physics Science and Information Technology (School of Integrated Circuits), Liaocheng University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Chengjian Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaowei Wang"
    },
    {
      "affs": [
        0
      ],
      "name": "Guoru Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Jiajun Guo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8zmx5qtdk3h4e.bib",
  "cited_by": 0,
  "doi": "10.1038/s41598-026-62605-0",
  "fulltext_url": "https://doi.org/10.1038/s41598-026-62605-0",
  "id": "8zmx5qtdk3h4e",
  "issns": [
    "2045-2322"
  ],
  "landing_url": "https://doi.org/10.1038/s41598-026-62605-0",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "Q"
    ],
    [
      "lcc",
      "R"
    ],
    [
      "openalex",
      "2505|Electronic and Structural Properties of Oxides"
    ]
  ],
  "openalex": "W7170084130",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-01",
  "publisher": "Nature Portfolio",
  "ris": "https://research.draconitic.com/paper/8zmx5qtdk3h4e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:45:57Z",
      "native_id": "87506780613e4f9a935ba126b62ce67a",
      "source": "doaj",
      "url": "https://doi.org/10.1038/s41598-026-62605-0"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Electronic and Structural Properties of Oxides",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Gate tunable circular photogalvanic effect at amorphous-LaAlO3/SrTiO3 interfaces",
  "title_text": "Gate tunable circular photogalvanic effect at amorphous-LaAlO3/SrTiO3 interfaces",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:45:57Z",
  "url": "https://research.draconitic.com/paper/8zmx5qtdk3h4e",
  "venue": "Scientific Reports",
  "versions": []
}