{
  "id": "1606.01710",
  "version": "v1",
  "published": "2016-06-06T12:14:39.000Z",
  "updated": "2016-06-06T12:14:39.000Z",
  "title": "Single-edge transport in InAs/GaSb quantum spin Hall insulator",
  "authors": [
    "François Couëdo",
    "Hiroshi Irie",
    "Kyoichi Suzuki",
    "Koji Onomitsu",
    "Koji Muraki"
  ],
  "comment": "5 pages, 5 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report transport measurements in a single edge channel of an InAs/GaSb quantum spin Hall insulator, where the conduction occurs through only one pair of counter-propagating edge modes. By using a specific sample design involving highly asymmetric current paths, we electrically isolate a single edge channel of the two-dimensional topological insulator from the other edge. This enables us to probe a single edge by multi-terminal measurements. Both two-terminal and four-terminal resistances show a nearly quantized plateau around $h/e^2$ for a 4-$\\mu$m-long edge, indicating quasi-ballistic transport. Our approach is advantageous in that it allows us to gain insight into a microscopic region from local measurements.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-06-06T12:14:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "inas/gasb quantum spin hall insulator",
      "single-edge transport",
      "single edge channel",
      "measurements",
      "specific sample design"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}