{
  "id": "2401.05685",
  "version": "v1",
  "published": "2024-01-11T06:22:14.000Z",
  "updated": "2024-01-11T06:22:14.000Z",
  "title": "Josephson Junction of Nodal Superconductors with Rashba and Ising Spin-Orbit coupling",
  "authors": [
    "Gal Cohen",
    "Ranjani Seshadri",
    "Maxim Khodas",
    "Dganit Meidan"
  ],
  "comment": "9 pages, 9 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We study the effect of a Rashba spin-orbit coupling on the nodal superconducting phase of an Ising superconductor. Such nodal phase was predicted to occur when applying an in-plane field beyond the Pauli limit to a superconducting monolayer transition metal dichalcogenides (TMD). Generically, Rashba spin-orbit is known to lift the chiral symmetry that protects the nodal points, resulting in a fully gapped phase. However, when the magnetic field is applied along the $\\Gamma -K $ line, a residual vertical mirror symmetry protects a nodal crystalline phase. We study a single-band tight-binding model that captures the low energy physics around the $\\Gamma $ pocket of monolayer TMD. We calculate the topological properties, the edge state structure, and the current phase relation in a Josephson junction geometry of the nodal crystalline phase. We show that while the nodal crystalline phase is characterized by localized edge modes on non-self-reflecting boundaries, the current phase relation exhibits a trivial $2\\pi $ periodicity in the presence of Rashba spin-orbit coupling.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-01-11T06:22:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "josephson junction",
      "nodal crystalline phase",
      "ising spin-orbit coupling",
      "nodal superconductors",
      "monolayer transition metal dichalcogenides"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}