{
  "annotation_id": "a1d57bdc-b428-4019-b9b3-5c016443bd3b",
  "date_created": "2026-03-02T18:00:28.846000Z",
  "date_modified": "2026-03-02T18:00:28.846000Z",
  "file_hash": "7b68b98eda915e6a8cc96341170970b91bae111b4f8d1f7161650d72c2e4ccd9",
  "private": false,
  "record": {
    "abstract": "Molecular dynamics simulations are used to investigate the atomic mobility\nand diffusivity of a generalized Frenkel-Kontorova model which takes into\naccount anharmonic (exponential) interaction of atoms subjected to a\nthree-dimensional substrate potential periodic in two dimensions and nonconvex\n(Morse) in the third dimension. The numerical results are explained by a\nphenomenological theory which treats a system of strongly interacting atoms as\na system of weakly interacting quasiparticles (kinks). Model parameters are\nchosen close to those for {\\bf K}-{\\bf W}(112) adsorption system.",
    "arxiv_id": "patt-sol/9604003",
    "authors": [
      "Oleg M. Braun",
      "Thierry~Dauxois",
      "Maxim V. Paliy",
      "Michel Peyrard"
    ],
    "categories": [
      "patt-sol",
      "mtrl-th",
      "nlin.PS"
    ],
    "doi": "10.1103/PhysRevB.54.321",
    "journal_ref": "Physical Review B 54, 321-332 (1996)",
    "title": "Mobility and diffusivity in a generalized Frenkel-Kontorova model",
    "url": "https://arxiv.org/abs/patt-sol/9604003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4115cf50-543a-4c1b-8210-622cdedb44ea",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}