{
  "id": "0706.1195",
  "version": "v1",
  "published": "2007-06-08T16:03:19.000Z",
  "updated": "2007-06-08T16:03:19.000Z",
  "title": "Valley polarization and susceptibility of composite fermions around nu=3/2",
  "authors": [
    "N. C. Bishop",
    "M. Padmanabhan",
    "K. Vakili",
    "Y. P. Shkolnikov",
    "E. P. De Poortere",
    "M. Shayegan"
  ],
  "comment": "to appear in Phys. Rev. Lett",
  "doi": "10.1103/PhysRevLett.98.266404",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We report magnetotransport measurements of fractional quantum Hall states in an AlAs quantum well around Landau level filling factor nu = 3/2, demonstrating that the quasiparticles are composite Fermions (CFs) with a valley degree of freedom. By monitoring the valley level crossings for these states as a function of applied symmetry-breaking strain, we determine the CF valley susceptibility and polarization. The data can be explained well by a simple Landau level fan diagram for CFs, and are in nearly quantitative agreement with the results reported for CF spin polarization.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-06-08T16:03:19.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "71.10.Pm",
      "71.70.Fk",
      "73.43.-f"
    ],
    "keywords": [
      "composite fermions",
      "valley polarization",
      "simple landau level fan diagram",
      "susceptibility",
      "fractional quantum hall states"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2007,
      "month": "Jun",
      "volume": 98,
      "number": 26,
      "pages": 266404
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007PhRvL..98z6404B"
    }
  }
}