{
  "id": "cond-mat/9802188",
  "version": "v1",
  "published": "1998-02-18T08:06:52.000Z",
  "updated": "1998-02-18T08:06:52.000Z",
  "title": "2D Lattice of coupled Sinai billiards: metal or insulator at g<<1",
  "authors": [
    "M. V. Budantsev",
    "Z. D. Kvon",
    "A. G. Pogosov",
    "G. M. Gusev",
    "J. C. Portal",
    "D. K. Maude",
    "N. T. Moshegov",
    "A. I. Toropov"
  ],
  "comment": "8 pages, 3 figures. Submitted to Phys. Rev. Lett",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.dis-nn"
  ],
  "abstract": "We investigate the transport in a two-dimensional (2D) lattice of coupled Sinai billiards fabricated on the basis of a high-mobility 2D electron gas in GaAs/AlGaAs heterojunction. For the states with low reduced conductivity g<<1 an anomalously weak temperature dependence of g was found. The large negative magnetoresistance described by the Lorentz line-shape of the width corresponding to the half magnetic flux quantum through the area of the billiard is observed. In going from g>1 to g<<1 it strongly increases. The Shubnikov-de Haas oscillations and commensurability magnetoresistance peak are preserved at g<<1. The data suggest that the system studied behaves more like a metal than an insulator at g<<1 and is not described by the generally accepted picture of Anderson localization.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1998-02-18T08:06:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coupled sinai billiards",
      "2d lattice",
      "high-mobility 2d electron gas",
      "shubnikov-de haas oscillations",
      "commensurability magnetoresistance peak"
    ],
    "publication": {
      "journal": "Physica B Condensed Matter",
      "year": 1999,
      "volume": 256,
      "pages": 595
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "1999PhyB..256..595B"
    }
  }
}