{
  "id": "2102.01252",
  "version": "v1",
  "published": "2021-02-02T01:38:33.000Z",
  "updated": "2021-02-02T01:38:33.000Z",
  "title": "Current-induced dynamics of skyrmion tubes in synthetic antiferromagnetic multilayers",
  "authors": [
    "Jing Xia",
    "Xichao Zhang",
    "Kaiyu Mak",
    "Motohiko Ezawa",
    "Oleg A. Tretiakov",
    "Yan Zhou",
    "Guoping Zhao",
    "Xiaoxi Liu"
  ],
  "comment": "24 pages, 6 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The topological spin textures can be found in both two-dimensional and three-dimensional nanostructures, which are of great importance to advanced spintronic applications. Here we report the current-induced skyrmion tube dynamics in three-dimensional synthetic antiferromagnetic (SyAF) bilayer and multilayer nanostructures. It is found that the SyAF skyrmion tube made of thinner sublayer skyrmions is more stable during its motion, which ensures that a higher speed of the skyrmion tube can be reached effectively at larger driving current. In the SyAF multilayer with a given total thickness, the current-induced deformation of the SyAF skyrmion tube decreases with increasing number of interfaces, namely, the rigidity of the SyAF skyrmion tube with a given thickness increases with the number of consisting ferromagnetic (FM) layers. For the SyAF multilayer with an even number of consisting FM layers, the skyrmion Hall effect can be eliminated when the thicknesses of all consisting FM layers are identical. Larger damping parameter leads to smaller deformation and slower speed of the SyAF skyrmion tube. Larger field-like torque leads to larger deformation and higher speed of the SyAF skyrmion tube. Our results are useful for understanding the dynamic behaviors of three-dimensional topological spin textures, and may provide guidelines for building SyAF spintronic devices.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-02-02T01:38:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "synthetic antiferromagnetic multilayers",
      "current-induced dynamics",
      "topological spin textures",
      "consisting fm layers",
      "syaf multilayer"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 24,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}