{
  "id": "2109.14308",
  "version": "v3",
  "published": "2021-09-29T09:48:44.000Z",
  "updated": "2022-07-27T08:13:18.000Z",
  "title": "Graphene bilayer and trilayer Moiré lattice with Rashba spin-orbit coupling",
  "authors": [
    "Yshai Avishai",
    "Yehuda Band"
  ],
  "comment": "5 pages, references added, few corrections inserted",
  "journal": "Phys. Rev. B106 L041406 (2022)",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We consider twisted bilayer and trilayer graphene in the presence of Rashba spin-orbit coupling and explore the physics of Moir\\'e spintronics. The electronic charge density has a sharp step right at the magic angles $\\theta_m$. As a result, local spin observables (polarization and equilibrium spin currents) have sharp peaks (of width about a small fraction of 1$^\\circ$) as a function of the twist angle $\\theta$, and abrupt sign reversals at $\\theta_m$. Thereby, the magic angle can be determined in an unprecedented accuracy. In the first chiral limit, the spin currents vanish, but the peculiar pattern of the polarization at $\\theta_m$ persists. Major differences result in spintronics of twisted bilayer graphene at magic angles as compared with the spintronics of single and/or {\\it un-twisted} bilayer graphene. Thus, in addition to the numerous spectacular physical phenomena already reported in twisted bilayer graphene at magic angles, new phenomena also occur in twistronic spintronics.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2022-07-27T08:13:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "rashba spin-orbit coupling",
      "magic angle",
      "graphene bilayer",
      "twisted bilayer graphene",
      "spintronics"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}