{
  "id": "1810.05674",
  "version": "v1",
  "published": "2018-10-12T18:46:00.000Z",
  "updated": "2018-10-12T18:46:00.000Z",
  "title": "Spin-Orbit Torque and Nernst Effect in Bi-Sb/Co Heterostructures",
  "authors": [
    "Niklas Roschewsky",
    "Emily S. Walker",
    "Praveen Gowtham",
    "Sarah Muschinske",
    "Frances Hellman",
    "Seth R. Bank",
    "Sayeef Salahuddin"
  ],
  "comment": "5 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "Harmonic measurements of the longitudinal and transverse voltages in Bi-Sb/Co bilayers are presented. A large second harmonic voltage signal due to the ordinary Nernst effect is observed. In experiments where a magnetic field is rotated in the film plane, the ordinary Nernst effect shows the same angular dependence in the transverse voltage as the damping-like spin-orbit torque and in the longitudinal voltage as the unidirectional spin-Hall magneto-resistance respectively. Therefore, the ordinary Nernst effect can be a spurious signal in spin-orbit torque measurements, leading to an overestimation of the spin-Hall angle in topological insulators or semimetals.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-10-12T18:46:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin-orbit torque",
      "ordinary nernst effect",
      "bi-sb/co heterostructures",
      "large second harmonic voltage signal",
      "transverse voltage"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}