{
  "abstract": "Altermagnets combine compensated magnetic order with unconventional symmetry-dependent responses, offering a promising platform for spintronic applications. Here, we show that a voltage-controlled magnetic-anisotropy gradient drives altermagnetic (ATM) skyrmions in a nearly rectilinear, Hall-free manner in the absence of thermal fluctuations, owing to their strongly compensated gyrotropic response. Thermal magnons qualitatively modify this behavior by increasing the longitudinal drag through magnon--skyrmion scattering and generating a transverse reaction force through handedness-dependent skew scattering. Owing to the anisotropic altermagnetic magnon band structure, the relative transport weights of the two magnon handednesses are interchanged between propagation along the $x$ and $y$ directions, resulting in transverse skyrmion drifts of opposite sign. By contrast, along the high-symmetry direction, the two magnon handednesses remain degenerate and their transverse contributions cancel, preserving Hall-free motion even at finite temperature. We thus uncover a thermally emergent anisotropic skyrmion Hall effect whose direction-dependent magnitude and sign originate from the intrinsic symmetry-dependent magnon spectrum, making it a generic finite-temperature dynamical feature of ATM skyrmions. Our results establish a low-power route toward electrically controlled and thermally tunable ATM skyrmion transport.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.27107",
  "author_total": 7,
  "authors": [
    {
      "name": "Tingting Liu"
    },
    {
      "name": "Bingyu Sun"
    },
    {
      "name": "Fengyue Zhu"
    },
    {
      "name": "Zhihui Zhang"
    },
    {
      "name": "Peiyu Zhang"
    },
    {
      "name": "Yang Liu"
    },
    {
      "name": "Minghui Qin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2mf1k1ce62esv.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.27107",
  "fulltext_url": null,
  "id": "2mf1k1ce62esv",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.27107",
  "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.mtrl-sci"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.27107",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2mf1k1ce62esv.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2608.27107",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.27107"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Emergent Skyrmion Hall Effect in $d$-wave Altermagnets at Finite Temperature",
  "title_text": "Emergent Skyrmion Hall Effect in d-wave Altermagnets at Finite Temperature",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:50Z",
  "url": "https://research.draconitic.com/paper/2mf1k1ce62esv",
  "venue": "arXiv",
  "versions": []
}