{
  "annotation_id": "ce549606-0bc1-46ea-9278-f6a0c92d8511",
  "date_created": "2026-03-02T18:00:28.847000Z",
  "date_modified": "2026-03-02T18:00:28.847000Z",
  "file_hash": "283d9368386ace841ab9521e444152b2c65b25dfa26cca9ea67a71293a7f5d2b",
  "private": false,
  "record": {
    "abstract": "We study surface diffusion in the framework of a generalized\nFrenkel-Kontorova model with a nonconvex transverse degree of freedom. The\nmodel describes a lattice of atoms with a given concentration interacting by\nMorse-type forces, the lattice being subjected to a two-dimensional substrate\npotential which is periodic in one direction and nonconvex (Morse) in the\ntransverse direction. The results are used to describe the complicated\nexchange-mediated diffusion mechanism recently observed in MD simulations [J.E.\nBlack and Zeng-Ju Tian, Phys. Rev. Lett. {\\bf 71}, 2445-2448(1993)].",
    "arxiv_id": "patt-sol/9604002",
    "authors": [
      "Oleg M. Braun",
      "Thierry Dauxois",
      "Michel Peyrard"
    ],
    "categories": [
      "patt-sol",
      "mtrl-th",
      "nlin.PS"
    ],
    "doi": "10.1103/PhysRevB.54.313",
    "journal_ref": "Physical Review B 54, 313-320 (1996)",
    "title": "Solitonic-exchange mechanism of surface~diffusion",
    "url": "https://arxiv.org/abs/patt-sol/9604002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2d5ab03f-70ce-42c5-9067-a075c1c12dfd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}