{
  "id": "0808.3807",
  "version": "v1",
  "published": "2008-08-28T00:46:15.000Z",
  "updated": "2008-08-28T00:46:15.000Z",
  "title": "Giant frictional drag in strongly interacting bilayers near filling factor one",
  "authors": [
    "E. Tutuc",
    "R. Pillarisetty",
    "M. Shayegan"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Phys. Rev. B 79, 041303 (2009)",
  "doi": "10.1103/PhysRevB.79.041303",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We study the frictional drag in high mobility, strongly interacting GaAs bilayer hole systems in the vicinity of the filling factor $\\nu=1$ quantum Hall state (QHS), at the same fillings where the bilayer resistivity displays a reentrant insulating phase. Our measurements reveal a very large longitudinal drag resistivity ($\\rho^{D}_{xx}$) in this regime, exceeding 15 k$\\Omega/\\Box$ at filling factor $\\nu=1.15$. $\\rho^{D}_{xx}$ shows a weak temperature dependence and appears to saturate at a finite, large value at the lowest temperatures. Our observations are consistent with theoretical models positing a phase separation, e.g. puddles of $\\nu=1$ QHS embedded in a different state, when the system makes a transition from the coherent $\\nu=1$ QHS to the weakly coupled $\\nu=2$ QHS.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-08-28T00:46:15.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.43.-f",
      "71.35.-y",
      "73.22.Gk"
    ],
    "keywords": [
      "giant frictional drag",
      "filling factor",
      "strongly interacting bilayers",
      "large longitudinal drag resistivity",
      "interacting gaas bilayer hole systems"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Jan",
      "volume": 79,
      "number": 4,
      "pages": "041303"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..79d1303T"
    }
  }
}