{
  "annotation_id": "8ade8cb9-8d68-48f3-8f7c-a7caaab9a565",
  "date_created": "2026-03-02T18:02:34.031000Z",
  "date_modified": "2026-03-02T18:02:34.031000Z",
  "file_hash": "022cbb045100e88d2a631231d7d6ef72a40a751ab35b6e2642a065431eb51537",
  "private": false,
  "record": {
    "abstract": "Spin tunneling in the particular case of the magnetic molecular cluster\noctanuclear iron(III), Fe8, is treated by an effective Hamiltonian that allows\nfor an angle-based description of the process. The presence of an external\nmagnetic field along the easy axis is also taken into account in this\ndescription. Analytic expressions for the energy levels and barriers are\nobtained from a harmonic approximation of the potential function which give\nresults in good agreement with the experimental results. The energy splittings\ndue to spin tunneling is treated in an adapted WKB approach and it is shown\nthat the present description can give results to a reliable degree of accuracy.",
    "arxiv_id": "quant-ph/0702051",
    "authors": [
      "D. Galetti",
      "E. C. Silva"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physa.2007.07.071",
    "title": "Spin tunneling in magnetic molecules: Quantitative estimates for Fe8   clusters",
    "url": "https://arxiv.org/abs/quant-ph/0702051"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "254c4d02-c1ca-4d80-86bd-106954236c51",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}