{
  "id": "1009.1088",
  "version": "v3",
  "published": "2010-09-06T16:36:46.000Z",
  "updated": "2011-04-12T13:27:56.000Z",
  "title": "Atomic structure, energetics, and dynamics of topological solitons in Indium chains on Si(111) surfaces",
  "authors": [
    "Hui Zhang",
    "Jin-Ho Choi",
    "Yang Xu",
    "Xiuxia Wang",
    "Xiaofang Zhai",
    "Bing Wang",
    "Changgan Zeng",
    "Jun-Hyung Cho",
    "Zhenyu Zhang",
    "J. G. Hou"
  ],
  "comment": "5 pages, 3 figures",
  "doi": "10.1103/PhysRevLett.106.026801",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Based on scanning tunneling microscopy and first-principles theoretical studies, we characterize the precise atomic structure of a topological soliton in In chains grown on Si(111) surfaces. Variable-temperature measurements of the soliton population allow us to determine the soliton formation energy to be ~60 meV, smaller than one half of the band gap of ~200 meV. Once created, these solitons have very low mobility, even though the activation energy is only about 20 meV; the sluggish nature is attributed to the exceptionally low attempt frequency for soliton migration. We further demonstrate local electric field-enhanced soliton dynamics.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2011-04-12T13:27:56.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.20.Mf",
      "68.35.Md",
      "68.37.Ef"
    ],
    "keywords": [
      "atomic structure",
      "topological soliton",
      "indium chains",
      "energetics",
      "demonstrate local electric field-enhanced soliton"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2011,
      "month": "Jan",
      "volume": 106,
      "number": 2,
      "pages": "026801"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvL.106b6801Z"
    }
  }
}