{
  "abstract": "We show that tuning Rashba spin-orbit coupling can change the in-plane field direction along which an $s$-wave superconductor is most susceptible to Zeeman depairing. We consider a two-dimensional $s$-wave superconductor subject to an odd-parity exchange field induced by a $p$-wave magnet. Without Rashba coupling, the out-of-plane exchange field enhances the in-plane critical field but leaves its angular response exactly isotropic, despite the anisotropic magnetic spin texture. Minimizing the Bogoliubov--de Gennes grand potential over uniform singlet pairing, we find that increasing Rashba coupling first generates and then reverses the principal-axis critical-field contrast, switching the minimum-critical-field direction by $90^{\\circ}$. Equal principal-axis fields at the intervening compensation point coexist with residual angular modulation. We interpret the reversal through competing momentum-dependent depairing contributions from the magnetic and Rashba spin textures, while the on-site singlet pairing channel remains unchanged. Direction-dependent discontinuous collapses of the order parameter further shape the critical-field curves. These results identify a tunable directional paramagnetic response within the uniform-pairing sector. In heterostructures with sufficient electrostatic tunability of interfacial Rashba coupling, this reversal would enable gate control of the easy-depairing axis without reorienting the magnetic texture.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.27499",
  "author_total": 4,
  "authors": [
    {
      "name": "Rui-Xiang Cheng"
    },
    {
      "name": "Zhao Gong"
    },
    {
      "name": "Dong-Hui Xu"
    },
    {
      "name": "Chui-Zhen Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3nhdzddjwtzfc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.27499",
  "fulltext_url": null,
  "id": "3nhdzddjwtzfc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.27499",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.supr-con"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7223158789",
  "pdf_url": "https://arxiv.org/pdf/2610.27499",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3nhdzddjwtzfc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:04Z",
      "native_id": "2610.27499",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.27499"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Rashba-controlled emergence and reversal of critical-field anisotropy in p-wave magnet--superconductor hybrids",
  "title_text": "Rashba-controlled emergence and reversal of critical-field anisotropy in p-wave magnet--superconductor hybrids",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:04Z",
  "url": "https://research.draconitic.com/paper/3nhdzddjwtzfc",
  "venue": "arXiv",
  "versions": []
}