{
  "id": "cond-mat/0504569",
  "version": "v2",
  "published": "2005-04-21T19:14:27.000Z",
  "updated": "2005-08-03T20:14:12.000Z",
  "title": "Polarization and Aharonov-Bohm oscillations in quantum-ring magnetoexcitons",
  "authors": [
    "Luis G. Dias da Silva",
    "Sergio E. Ulloa",
    "Tigran V. Shahbazyan"
  ],
  "comment": "Updated version, 6 pages, 4 figures. To appear in Phys. Rev. B",
  "journal": "Phys. Rev. B 72 125327 (2005).",
  "doi": "10.1103/PhysRevB.72.125327",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study interaction and radial polarization effects on the the absorption spectrum of neutral bound magnetoexcitons confined in quantum-ring structures. We show that the size and orientation of the exciton's dipole moment, as well as the interaction screening, play important roles in the Aharonov-Bohm oscillations. In particular, the excitonic absorption peaks display A-B oscillations both in position and amplitude for weak electron-hole interaction and large radial polarization. The presence of impurity scattering induces anticrossings in the exciton spectrum, leading to a modulation in the absorption strength. These properties could be used in experimental investigations of the effect in semiconductor quantum-ring structures.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-08-03T20:14:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "aharonov-bohm oscillations",
      "quantum-ring magnetoexcitons",
      "excitonic absorption peaks display a-b",
      "absorption peaks display a-b oscillations",
      "radial polarization"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}