{
  "abstract": "We demonstrate that antiskyrmions can serve as magnetic quadrupole lenses that focus or defocus electric currents traversing them. We showcase the antiskyrmion core as a focal point where electron beams converge for specific injection directions, leading to anisotropic and nonuniform current distributions. Thus the current-induced antiskyrmion dynamics is profoundly modified by the magnetic quadrupole lensing via the spin-transfer torque. By incorporating quantum transport and micromagnetic simulations iteratively, we self-consistently capture the coupled dynamics of conduction electrons and antiskyrmions. Our results unveil a quadrupolar antiskyrmion Hall effect that is highly anisotropic with respect to the current direction and can be effectively tuned by the spin-orbit coupling. In particular, the current focusing (defocusing) dramatically enhances (suppresses) the antiskyrmion speed while simultaneously reducing its Hall angle, thereby overcoming a key challenge for antiskyrmion racetrack memories. Our work establishes the intrinsic current lensing as a powerful mechanism for manipulating topological magnetic textures and opens new avenues for antiskyrmion-based spintronic devices.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23129",
  "author_total": 4,
  "authors": [
    {
      "name": "Linfeng Du"
    },
    {
      "name": "Yang Liu"
    },
    {
      "name": "Peng Yan"
    },
    {
      "name": "Ying Su"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fezr8rxt0cb66.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23129",
  "fulltext_url": null,
  "id": "fezr8rxt0cb66",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23129",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7214031148",
  "pdf_url": "https://arxiv.org/pdf/2609.23129",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fezr8rxt0cb66.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.23129",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23129"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Magnetic Quadrupole Lens and Current-Induced Quadrupolar Dynamics of Antiskyrmion",
  "title_text": "Magnetic Quadrupole Lens and Current-Induced Quadrupolar Dynamics of Antiskyrmion",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/fezr8rxt0cb66",
  "venue": "arXiv",
  "versions": []
}