{
  "id": "cond-mat/0001234",
  "version": "v1",
  "published": "2000-01-17T21:48:33.000Z",
  "updated": "2000-01-17T21:48:33.000Z",
  "title": "The effects of nuclear spins on the quantum relaxation of the magnetization for the molecular nanomagnet Fe_8",
  "authors": [
    "W. Wernsdorfer",
    "A. Caneschi",
    "R. Sessoli",
    "D. Gatteschi",
    "A. Cornia",
    "V. Villar",
    "C. Paulsen"
  ],
  "comment": "4 pages, 5 figures",
  "journal": "Phys. Rev. Lett. 84, 2965 (2000)",
  "doi": "10.1103/PhysRevLett.84.2965",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The strong influence of nuclear spins on resonant quantum tunneling in the molecular cluster Fe_8 is demonstrated for the first time by comparing the relaxation rate of the standard Fe_8 sample with two isotopic modified samples: (i) 56_Fe is replaced by 57_Fe, and (ii) a fraction of 1_H is replaced by 2_H. By using a recently developed \"hole digging\" method, we measured an intrinsic broadening which is driven by the hyperfine fields. Our measurements are in good agreement with numerical hyperfine calculations. For T > 1.5 K, the influence of nuclear spins on the relaxation rate is less important, suggesting that spin-phonon coupling dominates the relaxation rate at higher temperature.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2000-01-17T21:48:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "nuclear spins",
      "quantum relaxation",
      "molecular nanomagnet",
      "relaxation rate",
      "magnetization"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}