{
  "id": "1401.7430",
  "version": "v1",
  "published": "2014-01-29T08:21:49.000Z",
  "updated": "2014-01-29T08:21:49.000Z",
  "title": "Electronic structure of the BaTi$_2$As$_2$O parent compound of the titanium based oxypnictide superconductor",
  "authors": [
    "H. C. Xu",
    "M. Xu",
    "R. Peng",
    "Y. Zhang",
    "Q. Q. Ge",
    "F. Qin",
    "M. Xia",
    "J. J. Ying",
    "X. H. Chen",
    "M. Arita",
    "K. Shimada",
    "M. Taniguchi",
    "D. H. Lu",
    "B. P. Xie",
    "D. L. Feng"
  ],
  "comment": "7 pages, 7 figures",
  "journal": "Physical Review B 89, 155108 (2014)",
  "categories": [
    "cond-mat.supr-con",
    "cond-mat.str-el"
  ],
  "abstract": "The electronic structure of BaTi2As2O, a parent compound of the newly discovered titanium-based oxypnictide superconductors, is studied by angle-resolved photoemission spectroscopy. The electronic structure shows multi-orbital nature and possible three-dimensional character. An anomalous temperature-dependent spectral weight redistribution and broad lineshape indicate the incoherent nature of the spectral function. At the density-wave-like transition temperature around 200 K, a partial gap opens at the Fermi patches. These findings suggest that BaTi2As2O is likely a charge density wave material in the strong interaction regime.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-01-29T08:21:49.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "71.45.Lr",
      "75.30.Fv",
      "74.70.-b",
      "79.60.Bm"
    ],
    "keywords": [
      "electronic structure",
      "parent compound",
      "oxypnictide superconductor",
      "charge density wave material",
      "anomalous temperature-dependent spectral weight redistribution"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "doi": "10.1103/PhysRevB.89.155108",
      "year": 2014,
      "month": "Apr",
      "volume": 89,
      "number": 15,
      "pages": 155108
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvB..89o5108X"
    }
  }
}