{
  "id": "1210.4818",
  "version": "v1",
  "published": "2012-10-17T18:50:00.000Z",
  "updated": "2012-10-17T18:50:00.000Z",
  "title": "Controlling edge states in the Kane-Mele model via edge chirality",
  "authors": [
    "Gabriel Autès",
    "Oleg V. Yazyev"
  ],
  "comment": "to appear in Phys. Status Solidi RRL, Focus Issue on Topological Insulators",
  "journal": "Phys. Status Solidi RRL 7, 151 (2013)",
  "doi": "10.1002/pssr.201206383",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci",
    "cond-mat.str-el"
  ],
  "abstract": "We investigate the dependence of band dispersion of the quantum spin Hall effect (QSHE) edge states in the Kane-Mele model on crystallographic orientation of the edges. Band structures of the one-dimensional honeycomb lattice ribbons show the presence of the QSHE edge states at all orientations of the edges given sufficiently strong spin-orbit interactions. We find that the Fermi velocities of the QSHE edge-state bands increase monotonically when the edge orientation changes from zigzag (chirality angle $\\theta = 0^\\circ$) to armchair ($\\theta = 30^\\circ$). We propose a simple analytical model to explain the numerical results.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-10-17T18:50:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "controlling edge states",
      "kane-mele model",
      "edge chirality",
      "edge-state bands increase",
      "quantum spin hall effect"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Physica Status Solidi Rapid Research Letters",
      "year": 2013,
      "month": "Feb",
      "volume": 7,
      "number": "1-2",
      "pages": 151
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PSSRR...7..151A"
    }
  }
}