{
  "annotation_id": "5cd0d2b5-2273-4c52-a9c7-5f963a9731cf",
  "date_created": "2026-03-02T18:00:39.719000Z",
  "date_modified": "2026-03-02T18:00:39.719000Z",
  "file_hash": "b325356016e49ceabef546a16821266cd42e5b8442437e0d4e2cd56fc63a5a8c",
  "private": false,
  "record": {
    "abstract": "The freezing behavior of gold nanoclusters was studied by employing molecular\ndynamics simulations based on a semi-empirical embedded-atom method.\nInvestigations of the gold nanoclusters revealed that, just after freezing,\nordered nano-surfaces with a fivefold symmetry were formed with interior atoms\nremaining in the disordered state. Further lowering of temperatures induced\nnano-crystallization of the interior atoms that proceeded from the surface\ntowards the core region, finally leading to an icosahedral structure. These\ndynamic processes explain why the icosahedral cluster structure is dominantly\nformed in spite of its energetic metastability.",
    "arxiv_id": "physics/0205024",
    "authors": [
      "H. -S. Nam",
      "Nong M. Hwang",
      "B. D. Yu",
      "J. -K. Yoon"
    ],
    "categories": [
      "physics.atm-clus",
      "physics.comp-ph"
    ],
    "doi": "10.1103/PhysRevLett.89.275502",
    "title": "Formation of an Icosahedral Structure during the Freezing of Gold   Nanoclusters: Surface-Induced Mechanism",
    "url": "https://arxiv.org/abs/physics/0205024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cb8bc80a-4e85-48f0-85fb-6beac40787ee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}