{
  "id": "1205.6330",
  "version": "v2",
  "published": "2012-05-29T11:16:28.000Z",
  "updated": "2012-07-05T17:26:20.000Z",
  "title": "Structure and the Lamb-shift-like quantum splitting of the pseudo-zero-mode Landau levels in bilayer graphene",
  "authors": [
    "K. Shizuya"
  ],
  "comment": "12 pages, 4 figures, revtex; added references, to appear in PRB",
  "journal": "Phys. Rev. B 86, 045431 (2012)",
  "doi": "10.1103/PhysRevB.86.045431",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In a magnetic field bilayer graphene supports an octet of zero-energy Landau levels with an extra twofold degeneracy in Landau orbitals n=0 and n=1. It is shown that this orbital degeneracy is lifted due to Coulombic quantum fluctuations of the valence band (the Dirac sea); this is a quantum effect analogous to the Lamb shift in the hydrogen atom. A detailed study is made of how these zero-energy levels evolve, with filling, into a variety of pseudo-zero-mode Landau levels in the presence of possible spin and valley breaking and Coulomb interactions, and a comparison is made with experimental results.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-07-05T17:26:20.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.22.Pr",
      "73.43.-f",
      "75.25.Dk"
    ],
    "keywords": [
      "pseudo-zero-mode landau levels",
      "lamb-shift-like quantum splitting",
      "magnetic field bilayer graphene supports",
      "zero-energy landau levels",
      "extra twofold degeneracy"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Jul",
      "volume": 86,
      "number": 4,
      "pages": "045431"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvB..86d5431S"
    }
  }
}