{
  "id": "0706.3833",
  "version": "v1",
  "published": "2007-06-26T14:00:53.000Z",
  "updated": "2007-06-26T14:00:53.000Z",
  "title": "Spin states and persistent currents in a mesoscopic ring with an embedded magnetic impurity",
  "authors": [
    "J. S. Sheng",
    "Kai Chang"
  ],
  "comment": "8 pages, 11 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Spin states and persistent currents are investigated theoretically in a mesoscopic ring with an embedded magnetic ion under a uniform magnetic field including the spin-orbit interactions. The magnetic impurity acts as a spin-dependent $\\delta$-potential for electrons and results in gaps in the energy spectrum, consequently suppresses the oscillation of the persistent currents. The competition between the Zeeman splittings and the $s$-$d$ exchange interaction leads to a transition of the electron ground state in the ring. The interplay between the periodic potential induced by the Rashba and Dresselhaus spin-orbit interactions and the $\\delta$-potential induced by the magnetic impurity leads to significant variation in the energy spectrum, charge density distribution, and persistent currents of electrons in the ring.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-06-26T14:00:53.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "persistent currents",
      "embedded magnetic impurity",
      "spin states",
      "mesoscopic ring",
      "energy spectrum"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0953-8984/20/02/025222",
      "journal": "Journal of Physics Condensed Matter",
      "year": 2008,
      "month": "Jan",
      "volume": 20,
      "number": 2,
      "pages": 25222
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008JPCM...20b5222S"
    }
  }
}