{
  "id": "1408.1701",
  "version": "v1",
  "published": "2014-08-07T20:00:11.000Z",
  "updated": "2014-08-07T20:00:11.000Z",
  "title": "Edge-mode Superconductivity in a Two Dimensional Topological Insulator",
  "authors": [
    "Vlad S. Pribiag",
    "Arjan J. A. Beukman",
    "Fanming Qu",
    "Maja C. Cassidy",
    "Christophe Charpentier",
    "Werner Wegscheider",
    "Leo P. Kouwenhoven"
  ],
  "comment": "19 pages, 17 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Topological superconductivity is an exotic state of matter that supports Majorana zero-modes, which are surface modes in 3D, edge modes in 2D or localized end states in 1D. In the case of complete localization these Majorana modes obey non-Abelian exchange statistics making them interesting building blocks for topological quantum computing. Here we report superconductivity induced into the edge modes of semiconducting InAs/GaSb quantum wells, a two-dimensional topological insulator. Using superconducting quantum interference, we demonstrate gate-tuning between edge-dominated and bulk-dominated regimes of superconducting transport. The edge-dominated regime arises only under conditions of high-bulk resistivity, which we associate with the 2D topological phase. These experiments establish InAs/GaSb as a robust platform for further confinement of Majoranas into localized states enabling future investigations of non-Abelian statistics.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-08-07T20:00:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dimensional topological insulator",
      "edge-mode superconductivity",
      "non-abelian exchange statistics making",
      "majorana modes obey non-abelian exchange",
      "modes obey non-abelian exchange statistics"
    ],
    "publication": {
      "doi": "10.1038/nnano.2015.86",
      "journal": "Nature Nanotechnology",
      "year": 2015,
      "month": "Jul",
      "volume": 10,
      "number": 7,
      "pages": 593
    },
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015NatNa..10..593P"
    }
  }
}