{
  "id": "0806.2120",
  "version": "v2",
  "published": "2008-06-12T17:17:36.000Z",
  "updated": "2009-12-23T20:19:39.000Z",
  "title": "Bilayer splitting and c-axis coupling in bilayer manganites showing colossal magnetoresistance",
  "authors": [
    "C. Jozwiak",
    "J. Graf",
    "S. Y. Zhou",
    "A. Bostwick",
    "Eli Rotenberg",
    "H. Zheng",
    "J. F. Mitchell",
    "A. Lanzara"
  ],
  "comment": "8 pages, 6 figures",
  "journal": "Physical Review B, 80, 235111 (2009)",
  "doi": "10.1103/PhysRevB.80.235111",
  "categories": [
    "cond-mat.str-el",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "By performing angle-resolved photoemission spectroscopy of the bilayer colossal magnetoresistive (CMR) manganite, $La_{2-2x}Sr_{1+2x}Mn_{2}O_{7}$, we provide the complete mapping of the Fermi level spectral weight topology. Clear and unambiguous bilayer splitting of the in-plane 3d$_{x^2-y^2}$ band, mapped throughout the Brillouin zone, and the full mapping of the 3d$_{3z^2-r^2}$ band are reported. Peculiar doping and temperature dependencies of these bands imply that as transition from the ferromagnetic metallic phase approaches, either as a function of doping or temperature, coherence along the c-axis between planes within the bilayer is lost, resulting in reduced interplane coupling. These results suggest that interplane coupling plays a large role in the CMR transition.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-12-23T20:19:39.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.47.Gk",
      "71.18.+y",
      "71.30.+h",
      "79.60.-i"
    ],
    "keywords": [
      "bilayer manganites showing colossal magnetoresistance",
      "bilayer splitting",
      "c-axis coupling",
      "fermi level spectral weight topology",
      "ferromagnetic metallic phase approaches"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Dec",
      "volume": 80,
      "number": 23,
      "pages": 235111
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80w5111J"
    }
  }
}