{
  "id": "2505.04827",
  "version": "v1",
  "published": "2025-05-07T22:01:48.000Z",
  "updated": "2025-05-07T22:01:48.000Z",
  "title": "Proposed controlled creation and manipulation of skyrmions with spin-orbit torque",
  "authors": [
    "Yuto Uwabo",
    "Ryo Fujimoto",
    "Kimimaro Yanai",
    "Masahito Mochizuki"
  ],
  "comment": "14 pages, 9 figures, invited article for Special Topic on \"Ferroic Materials, Domains, and Domain Walls: Bridging Fundamentals with Next-Generation Technology\" in Journal of Applied Physics",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "The physical mechanisms underlying current-driven skyrmion motion include the spin-transfer torque exerted by a spin-polarized horizontal electric current and the spin-orbit torque exerted by a perpendicular spin current. Each mechanism requires a specific sample geometry and structural configuration. Regarding current-induced skyrmion creation, skyrmions can be efficiently created at low current densities via spin-transfer torque when an electric current is applied to a nanotrack structure with a small notch. However, an effective and controlled method for skyrmion creation via spin-orbit torque in notched nanotracks has yet to be established. Here we theoretically propose a method for the creation, driving, and deletion of skyrmions in a three-terminal magnetic heterojunction with a notch. Our proposal offers valuable insights into the design of techniques for skyrmion creation and manipulation using spin-orbit torque, which is essential for technical applications of magnetic skyrmions as information carriers in next-generation spintronic memory devices.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2025-05-07T22:01:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin-orbit torque",
      "controlled creation",
      "skyrmion creation",
      "manipulation",
      "next-generation spintronic memory devices"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}