{
  "id": "0810.2274",
  "version": "v1",
  "published": "2008-10-13T17:22:33.000Z",
  "updated": "2008-10-13T17:22:33.000Z",
  "title": "Observation of a Fractional Quantum Hall State at $ν=1/4$ in a Wide GaAs Quantum Well",
  "authors": [
    "D. R. Luhman",
    "W. Pan",
    "D. C. Tsui",
    "L. N. Pfeiffer",
    "K. W. Baldwin",
    "K. W. West"
  ],
  "comment": "Accepted for publication in Phys. Rev. Lett",
  "doi": "10.1103/PhysRevLett.101.266804",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report the observation of an even-denominator fractional quantum Hall (FQH) state at $\\nu=1/4$ in a high quality, wide GaAs quantum well. The sample has a quantum well width of 50 nm and an electron density of $n_e=2.55\\times10^{11}$ cm$^{-2}$. We have performed transport measurements at $T\\sim35$ mK in magnetic fields up to 45 T. When the sample is perpendicular to the applied magnetic field, the diagonal resistance displays a kink at $\\nu=1/4$. Upon tilting the sample to an angle of $\\theta=20.3^o$ a clear FQH state at emerges at $\\nu=1/4$ with a plateau in the Hall resistance and a strong minimum in the diagonal resistance.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-10-13T17:22:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "fractional quantum hall state",
      "wide gaas quantum",
      "observation",
      "even-denominator fractional quantum hall",
      "magnetic field"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Dec",
      "volume": 101,
      "number": 26,
      "pages": 266804
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvL.101z6804L"
    }
  }
}