{
  "id": "1704.02031",
  "version": "v1",
  "published": "2017-04-06T21:50:17.000Z",
  "updated": "2017-04-06T21:50:17.000Z",
  "title": "Detection of current induced spin polarization in epitaxial Bi$_2$Te$_3$ thin film",
  "authors": [
    "Rik Dey",
    "Anupam Roy",
    "Tanmoy Pramanik",
    "Amritesh Rai",
    "Seung Heon Shin",
    "Sarmita Majumder",
    "Leonard F. Register",
    "Sanjay K. Banerjee"
  ],
  "comment": "11 pages (including references), 4 figures (including supplementary information), accepted in journal",
  "journal": "Applied Physics Letters 110, 122403 (2017)",
  "doi": "10.1063/1.4978691",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We electrically detect charge current induced spin polarization on the surface of molecular beam epitaxy grown Bi$_2$Te$_3$ thin film in a two-terminal device with a ferromagnetic MgO/Fe and a nonmagnetic Ti/Au contact. The two-point resistance, measured in an applied magnetic field, shows a hysteresis tracking the magnetization of the Fe. A theoretical estimate is obtained for the change in resistance on reversing the magnetization direction of Fe from coupled spin-charge transport equations based on quantum kinetic theory. The order of magnitude and the sign of the hysteresis is consistent with spin-polarized surface state of Bi$_2$Te$_3$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-04-06T21:50:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "thin film",
      "epitaxial bi",
      "molecular beam epitaxy grown bi",
      "detect charge current induced spin",
      "charge current induced spin polarization"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "AIP",
      "journal": "Appl. Phys. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}