{
  "id": "2212.07159",
  "version": "v1",
  "published": "2022-12-14T11:22:28.000Z",
  "updated": "2022-12-14T11:22:28.000Z",
  "title": "Structure and dynamics investigations of a partially hydrogenated graphene/Ni(111) surface",
  "authors": [
    "Emanuel Bahn",
    "Anton Tamtögl",
    "John Ellis",
    "William Allison",
    "Peter Fouquet"
  ],
  "journal": "Carbon, Volume 114, Pages 504-510, 2017",
  "doi": "10.1016/j.carbon.2016.12.055",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "Using helium-3 atom scattering, we have studied the adsorption kinetics, the structure and the diffusional dynamics of atomic hydrogen on the surface of a graphene monolayer on Ni(111). Diffraction measurements reveal a 4$^\\circ$ rotated rectangular hydrogen overstructure. Hydrogen adsorption and desorption exhibit activation barriers of $E_a=(89\\pm7)\\,$meV and $E_d=(1.8\\pm0.2)\\,$eV, respectively. Helium-3 spin-echo measurements showed no decay of the spatial correlation function (or intermediate scattering function) within the time range of the spectrometer. Hence, we are able to set lower limits for a possible hydrogen surface diffusion rate.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-12-14T11:22:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "partially hydrogenated graphene/ni",
      "dynamics investigations",
      "hydrogen surface diffusion rate",
      "set lower limits",
      "spatial correlation function"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}