{
  "id": "cond-mat/0207299",
  "version": "v1",
  "published": "2002-07-11T18:24:07.000Z",
  "updated": "2002-07-11T18:24:07.000Z",
  "title": "Electronic and optical properties of LiBC",
  "authors": [
    "A. V. Pronin",
    "K. Pucher",
    "P. Lunkenheimer",
    "A. Krimmel",
    "A. Loidl"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Phys. Rev. B 67, 132502 (2003)",
  "doi": "10.1103/PhysRevB.67.132502",
  "categories": [
    "cond-mat.mtrl-sci",
    "cond-mat.supr-con"
  ],
  "abstract": "LiBC, a semiconducting ternary borocarbide constituted of the lightest elements only, has been synthesized and characterized by x-ray powder diffraction, dielectric spectroscopy, and conductivity measurements. Utilizing an infrared microscope the phonon spectrum has been investigated in single crystals. The in-plane B-C stretching mode has been detected at 150 meV, noticeably higher than in AlB2, a non-superconducting isostructural analog of MgB2. It is this stretching mode, which reveals a strong electron-phonon coupling in MgB2, driving it into a superconducting state below 40 K, and is believed to mediate predicted high-temperature superconductivity in hole-doped LiBC [H. Rosner, A. Kitaigorodsky, and W. E. Pickett, Phys. Rev. Lett. 88, 127001 (2002)].",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-07-11T18:24:07.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optical properties",
      "electronic",
      "mediate predicted high-temperature superconductivity",
      "x-ray powder diffraction",
      "in-plane b-c stretching mode"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}