{
  "id": "2009.03120",
  "version": "v1",
  "published": "2020-09-07T14:12:11.000Z",
  "updated": "2020-09-07T14:12:11.000Z",
  "title": "Spin-orbit-enhanced robustness of supercurrent in graphene/WS$_2$ Josephson junctions",
  "authors": [
    "T. Wakamura",
    "N. J. Wu",
    "A. D. Chepelianskii",
    "S. Guéron",
    "M. Och",
    "M. Ferrier",
    "T. Taniguchi",
    "K. Watanabe",
    "C. Mattevi",
    "H. Bouchiat"
  ],
  "comment": "6 pages, 3 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We demonstrate enhanced robustness of the supercurrent through graphene-based Josephson junctions in which strong spin-orbit interactions (SOIs) are induced. We compare the persistence of a supercurrent at high magnetic fields between Josephson junctions with graphene on hexagonal boron-nitride and graphene on WS$_2$, where strong SOIs are induced via the proximity effect. We find that in the shortest junctions both systems display signatures of induced superconductivity, characterized by a suppressed differential resistance at a low current, in magnetic fields up to 1 T. In longer junctions however, only graphene on WS$_2$ exhibits induced superconductivity features in such high magnetic fields, and they even persist up to 7 T. We argue that these robust superconducting signatures arise from quasi-ballistic edge states stabilized by the strong SOIs induced in graphene by WS$_2$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-09-07T14:12:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "josephson junctions",
      "spin-orbit-enhanced robustness",
      "high magnetic fields",
      "supercurrent",
      "graphene/ws"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}