{
  "id": "1502.04098",
  "version": "v1",
  "published": "2015-02-13T19:47:34.000Z",
  "updated": "2015-02-13T19:47:34.000Z",
  "title": "Floquet interface states in illuminated three dimensional topological insulators",
  "authors": [
    "H. L. Calvo",
    "L. E. F. Foa Torres",
    "P. M. Perez-Piskunow",
    "C. A. Balseiro",
    "Gonzalo Usaj"
  ],
  "comment": "5 pages with 3 figures + supplemental material",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Recent experiments showed that the surface of a three dimensional topological insulator develops gaps in the Floquet-Bloch band spectrum when illuminated with a circularly polarized laser. These Floquet-Bloch bands are characterized by non-trivial Chern numbers which only depend on the helicity of the polarization of the radiation field. Here we propose a setup consisting of a pair of counter-rotating lasers, and show that one-dimensional chiral states emerge at the interface between the two lasers. These interface states turn out to be spin-polarized and may trigger interesting applications in the field of optoelectronics and spintronics.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-02-13T19:47:34.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.20.At",
      "72.25.-b",
      "73.43.-f",
      "78.67.-n"
    ],
    "keywords": [
      "dimensional topological insulator",
      "floquet interface states",
      "one-dimensional chiral states emerge",
      "floquet-bloch band spectrum"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.91.241404"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1344961
    }
  }
}