{
  "id": "1111.4563",
  "version": "v3",
  "published": "2011-11-19T15:03:34.000Z",
  "updated": "2012-01-31T13:56:42.000Z",
  "title": "Skyrme crystal in bilayer and multilayer graphene",
  "authors": [
    "Yasuhisa Sakurai",
    "Daijiro Yoshioka"
  ],
  "comment": "8 pages, 8 figures",
  "journal": "Phys. Rev. B 85, 045108 (2012)",
  "doi": "10.1103/PhysRevB.85.045108",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The ground state of the two-dimensional electron systems in Bernal bilayer and ABC-stacked multilayer graphenes in the presence of a strong magnetic field is investigated with the Hartree-Fock approximation. Phase diagrams of the systems are obtained, focusing on charge density wave states including states with vortices of valley pseudospins (called a Skyrme crystal). The single-electron states in these stacked graphenes are given by two-component wave functions. That of the first excited Landau level has the same component as the lowest Landau level of the ordinary two-dimensional electrons. Because of this localized wave functions, the Skyrme crystal has low energy in this first excited level up to four layers of graphene, when the inter-layer distance is assumed to be infinitesimal. At the same time, bubble crystals are suppressed, so the phase diagram is different from that of a single-layer graphene.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2012-01-31T13:56:42.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.21.-b",
      "73.22.Gk",
      "73.22.Pr"
    ],
    "keywords": [
      "skyrme crystal",
      "multilayer graphene",
      "phase diagram",
      "charge density wave states",
      "lowest landau level"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Jan",
      "volume": 85,
      "number": 4,
      "pages": "045108"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvB..85d5108S"
    }
  }
}