{
  "id": "1112.3465",
  "version": "v1",
  "published": "2011-12-15T09:52:33.000Z",
  "updated": "2011-12-15T09:52:33.000Z",
  "title": "Storage of classical information in quantum spins",
  "authors": [
    "F. Delgado",
    "J. Fernández-Rossier"
  ],
  "journal": "Physical Review Letters, 108, 196602 (2012)",
  "doi": "10.1103/PhysRevLett.108.196602",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Digital magnetic recording is based on the storage of a bit of information in the orientation of a magnetic system with two stable ground states. Here we address two fundamental problems that arise when this is done on a quantized spin: quantum spin tunneling and back-action of the readout process. We show that fundamental differences exist between integer and semi-integer spins when it comes to both, read and record classical information in a quantized spin. Our findings imply fundamental limits to the miniaturization of magnetic bits and are relevant to recent experiments where spin polarized scanning tunneling microscope reads and records a classical bit in the spin orientation of a single magnetic atom.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-12-15T09:52:33.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.25.Pn",
      "71.70.Gm",
      "72.10.Bg",
      "72.25.Mk"
    ],
    "keywords": [
      "quantum spin",
      "classical information",
      "scanning tunneling microscope reads",
      "polarized scanning tunneling microscope",
      "single magnetic atom"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2012,
      "month": "May",
      "volume": 108,
      "number": 19,
      "pages": 196602
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvL.108s6602D"
    }
  }
}