{
  "id": "1602.04864",
  "version": "v1",
  "published": "2016-02-15T23:15:10.000Z",
  "updated": "2016-02-15T23:15:10.000Z",
  "title": "Kubo-Bastin approach for the spin Hall conductivity of decorated graphene",
  "authors": [
    "Jose H. Garcia",
    "Tatiana G. Rappoport"
  ],
  "comment": "8 pages, 8 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Theoretical predictions and recent experimental results suggest one can engineer spin Hall effect in graphene by enhancing the spin-orbit coupling in the vicinity of an impurity. We use a Chebyshev expansion of the Kubo-Bastin formula to compute the spin conductivity tensor for a tight-binding model of graphene with randomly distributed impurities absorbed on top of carbon atoms. We model the impurity-induced spin-orbit coupling with a graphene-only Hamiltonian that takes into account three different contributions~\\cite{Gmitra2013} and show how the spin Hall and longitudinal conductivities depend on the strength of each spin-orbit coupling and the concentration of impurities. Additionally, we calculate the real-space projection of the density of states in the vicinity of the Dirac point for single and multiple impurities and correlate these results with the conductivity calculations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-02-15T23:15:10.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin hall conductivity",
      "kubo-bastin approach",
      "decorated graphene",
      "spin-orbit coupling",
      "engineer spin hall effect"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160204864G"
    }
  }
}