{
  "annotation_id": "d6a932d9-785e-49fa-9739-ed51438eef52",
  "date_created": "2026-03-02T18:00:39.860000Z",
  "date_modified": "2026-03-02T18:00:39.860000Z",
  "file_hash": "90d9d000b7e903ef0ca3497ce566b87e379e054c9873e345de7aa97d68f285c5",
  "private": false,
  "record": {
    "abstract": "It has been shown that the dependence of negative thermal expansion\ncoefficient of ZrW2O8 and HfW2O8 on the temperature found by many authors\ncontradicts to an important thermodynamic relation.",
    "arxiv_id": "physics/0207054",
    "authors": [
      "I. A. Stepanov"
    ],
    "categories": [
      "physics.gen-ph",
      "physics.chem-ph"
    ],
    "journal_ref": "In: Progress in Chemical Physics Research. Ed. A. N. Linke. Nova\n  Science Publishers, Inc. Hauppauge, NY. 2005 (invited). 107 - 114. (In very\n  much improved form)",
    "title": "Negative Thermal Expansion of ZrW2O8 and HfW2O8: Contradiction to a   Thermodynamic Relation",
    "url": "https://arxiv.org/abs/physics/0207054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "13165fd2-8851-40a3-b82c-b8a4a60f9479",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}