{
  "id": "cond-mat/0504514",
  "version": "v1",
  "published": "2005-04-20T11:04:14.000Z",
  "updated": "2005-04-20T11:04:14.000Z",
  "title": "Andreev reflection and cyclotron motion at superconductor -- normal-metal interfaces",
  "authors": [
    "F. Giazotto",
    "M. Governale",
    "U. Zuelicke",
    "F. Beltram"
  ],
  "comment": "8 pages, 6 figures",
  "journal": "Phys. Rev. B 72, 054518 (2005)",
  "doi": "10.1103/PhysRevB.72.054518",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We investigate Andreev reflection at the interface between a superconductor and a two--dimensional electron system (2DES) in an external magnetic field such that cyclotron motion is important in the latter. A finite Zeeman splitting in the 2DES and the presence of diamagnetic screening currents in the superconductor are incorporated into a microscopic theory of Andreev edge states, which is based on the Bogoliubov--de Gennes formalism. The Andreev--reflection contribution to the interface conductance is calculated. The effect of Zeeman splitting is most visible as a double--step feature in the conductance through clean interfaces. Due to a screening current, conductance steps are shifted to larger filling factors and the formation of Andreev edge states is suppressed below a critical filling factor.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-04-20T11:04:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cyclotron motion",
      "andreev reflection",
      "normal-metal interfaces",
      "superconductor",
      "andreev edge states"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}