{
  "id": "1505.03972",
  "version": "v1",
  "published": "2015-05-15T07:08:56.000Z",
  "updated": "2015-05-15T07:08:56.000Z",
  "title": "Electric-field guiding of magnetic skyrmions",
  "authors": [
    "Pramey Upadhyaya",
    "Guoqiang Yu",
    "Pedram Khalili Amiri",
    "Kang L. Wang"
  ],
  "comment": "9 pages, 7 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We theoretically study equilibrium and dynamic properties of nanosized magnetic skyrmions in thin magnetic films with broken inversion symmetry, where electric field couples to magnetization via spin-orbit coupling. Based on a symmetry-based phenomenology and micromagnetic simulations we show that this electric-field coupling, via renormalizing the micromagnetic energy, modifies the equilibrium properties of the skyrmion. This change, in turn, results in a significant alteration of the current-induced skyrmion motion. Particularly, speed and direction of the skyrmion can be manipulated by designing a desired energy landscape electrically, which we describe within Thiele's analytical model and demonstrate in micromagnetic simulations including electric-field-controlled magnetic anisotropy. We additionally use this electric-field control to construct gates for controlling skyrmion motion exhibiting a transistor-like and multiplexer-like function. The proposed electric-field effect can thus provide a low energy electrical knob to extend the reach of information processing with skyrmions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-15T07:08:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "magnetic skyrmions",
      "electric-field guiding",
      "micromagnetic simulations",
      "skyrmion motion",
      "thin magnetic films"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}