{
  "annotation_id": "2ce51320-c5b1-4340-9de3-fcb980d5a6f3",
  "date_created": "2026-03-02T18:01:00.756000Z",
  "date_modified": "2026-03-02T18:01:00.756000Z",
  "file_hash": "7b0370a89387e4d5a7723314bfc26db6c275871f1be0e5db58f4a753b298a6ec",
  "private": false,
  "record": {
    "abstract": "Polarization-resolved optical spectra of magnesia-supported gold clusters\nAu$_N$/MgO (N=1,2,4,8), bound at a surface color center $F_s$ of the MgO(100)\nface, are calculated from the time-dependent density functional theory. The\noptical lines for n=1,2 are dominated by transitions that involve strong\nhybridization between gold and $F_s$ states whereas for n=4,8 intracluster\ntransitions dominate. The theoretical optical spectra are sensitive to cluster\nstructure and adsorbants (here CO and O$_2$ molecules on Au$_8$/MgO) which\nsuggests polarization-resolved optical spectroscopy as a powerful tool to\ninvestigate structures and functions of chemically active, supported clusters.",
    "arxiv_id": "physics/0506121",
    "authors": [
      "Michael Walter",
      "Hannu H\u00e4kkinen"
    ],
    "categories": [
      "physics.atm-clus"
    ],
    "doi": "10.1103/PhysRevB.72.205440",
    "title": "Optical absorption by magnesia-supported gold clusters and   nanocatalysts: effects from the support, cluster and adsorbants",
    "url": "https://arxiv.org/abs/physics/0506121"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "de08f996-64cd-4a9a-9ba0-636789c2f5e2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}