{
  "id": "cond-mat/9712031",
  "version": "v2",
  "published": "1997-12-03T08:33:14.000Z",
  "updated": "1998-05-13T20:53:30.000Z",
  "title": "Composite Fermions in Modulated Structures: Transport and Surface Acoustic Waves",
  "authors": [
    "Felix von Oppen",
    "Ady Stern",
    "Bertrand I. Halperin"
  ],
  "comment": "Version published in Phys. Rev. Lett. Figures changed to show SAW velocity shift. LaTeX, 5 pages, two included postscript figures",
  "journal": "Phys. Rev. Lett. 80, 4494 (1998)",
  "doi": "10.1103/PhysRevLett.80.4494",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "Motivated by a recent experiment of Willett et al. [Phys. Rev. Lett. 78, 4478 (1997)], we employ semiclassical composite-fermion theory to study the effect of a periodic density modulation on a quantum Hall system near Landau level filling factor nu=1/2. We show that even a weak density modulation leads to dramatic changes in surface-acoustic-wave (SAW) propagation, and propose an explanation for several key features of the experimental observations. We predict that properly arranged dc transport measurements would show a structure similar to that seen in SAW measurements.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1998-05-13T20:53:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "surface acoustic waves",
      "composite fermions",
      "modulated structures",
      "properly arranged dc transport measurements",
      "periodic density modulation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}