{
  "id": "1702.03779",
  "version": "v1",
  "published": "2017-02-13T14:02:04.000Z",
  "updated": "2017-02-13T14:02:04.000Z",
  "title": "Spin Pumping and Inverse Spin Hall Voltages from Dynamical Antiferromagnets",
  "authors": [
    "Øyvind Johansen",
    "Arne Brataas"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Dynamical antiferromagnets pump spins efficiently into adjacent conductors as ferromagnets. The high antiferromagnetic resonance frequencies represent a challenge for experimental detection, but magnetic fields can reduce these resonance frequencies. We compute the inverse spin Hall voltages resulting from dynamical spin excitations as a function of a magnetic field along the easy axis and the polarization of the driving AC magnetic field perpendicular to the easy axis. We consider the insulating antiferromagnets MnF$_2$, FeF$_2$, and NiO. Near the spin-flop transition, there is a significant enhancement of the DC spin pumping and inverse spin Hall voltage for the uniaxial antiferromagnets MnF$_2$ and FeF$_2$. In the biaxial NiO, the voltages are much weaker, and there is no spin-flop enhancement of the DC component.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-02-13T14:02:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "inverse spin hall voltage",
      "dynamical antiferromagnets",
      "spin pumping",
      "ac magnetic field perpendicular",
      "spin hall voltages resulting"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}