{
  "id": "1305.5685",
  "version": "v5",
  "published": "2013-05-24T11:10:58.000Z",
  "updated": "2018-01-29T15:15:58.000Z",
  "title": "Andreev reflection at the edge of a two-dimensional electron system with strong spin-orbit coupling",
  "authors": [
    "A. Kononov",
    "G. Biasiol",
    "L. Sorba",
    "E. V. Deviatov"
  ],
  "comment": "as published",
  "journal": "JETP Letters 98, 421 (2013)",
  "doi": "10.1134/S0021364013200071",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We experimentally investigate transport properties of a single planar junction between the niobium superconductor and the edge of a two-dimensional electron system in a narrow $In_{0.75}Ga_{0.25}As$ quantum well with strong Rashba-type spin-orbit coupling. We experimentally demonstrate suppression of Andreev reflection at low biases at ultra low temperatures. From the analysis of temperature and magnetic field behavior, we interpret the observed suppression as a result of a spin-orbit coupling. There is also an experimental sign of the topological superconductivity realization in the present structure.",
  "revisions": [
    {
      "version": "v4",
      "updated": "2014-08-07T22:10:28.000Z",
      "title": "Suppression of Andreev reflection at energies well below the superconducting gap",
      "abstract": "We experimentally investigate transport properties of a single junction between a superconductor and the edge of a two-dimensional electron system in a narrow $In_{0.75}Ga_{0.25}As$ quantum well with strong Rashba-type spin-orbit coupling. We experimentally demonstrate suppression of Andreev reflection within a narrow energy range within the superconducting gap. This suppression is shown to be independent of the superconductor material and the interface disorder. The effect is only present at lowest temperatures and magnetic fields, far from the corresponding critical values of a superconducting transition. We connect the observed suppression with a spin-Hall effect due to a strong spin-orbit coupling on the normal side of the junction.",
      "comment": "5 pages, minor correction",
      "journal": null,
      "doi": null,
      "authors": [
        "A. Kononov",
        "N. Titova",
        "G. Biasiol",
        "L. Sorba",
        "E. V. Deviatov"
      ]
    },
    {
      "version": "v5",
      "updated": "2018-01-29T15:15:58.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "andreev reflection",
      "superconducting gap",
      "narrow energy range",
      "two-dimensional electron system",
      "normal side"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013arXiv1305.5685K"
    }
  }
}