{
  "id": "1205.5209",
  "version": "v1",
  "published": "2012-05-23T15:47:50.000Z",
  "updated": "2012-05-23T15:47:50.000Z",
  "title": "Diffusion at the Surface of Topological Insulators",
  "authors": [
    "Pierre Adroguer",
    "David Carpentier",
    "Jérôme Cayssol",
    "Edmond Orignac"
  ],
  "comment": "27 pages",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We consider the transport properties of topological insulators surface states in the presence of uncorrelated point-like disorder, both in the classical and quantum regimes. The transport properties of those two-dimensional surface states depend strongly on the amplitude of the hexagonal warping of their Fermi surface. It is shown that a perturbative analysis of the warping fails to describe the transport in experimentally available topological insulators, such as Bi2Se3 and Bi2Te3. Hence we develop a fully non-perturbative description of these effects. In particular, we find that the dependence of the warping amplitude on the Fermi energy manifests itself in a strong dependence of the diffusion constant on this Fermi energy, leading to several important experimental consequences. Moreover, the combination of a strong warping with an in plane Zeeman effect leads to an attenuation of conductance fluctuations in contrast to the situation of unwarped Dirac surface states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-05-23T15:47:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "transport properties",
      "fermi energy manifests",
      "unwarped dirac surface states",
      "plane zeeman effect",
      "topological insulators surface states"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 27,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012arXiv1205.5209A"
    }
  }
}