{
  "abstract": "The realization of the superconducting diode effect (SDE), characterized by non-reciprocal supercurrent, is a major step towards dissipationless logic circuits. A polarity-tunable superconducting diode with high diode efficiency primarily consists of Josephson-junction architectures that couple two superconducting regions via a weak link. Realizing an SDE without a weak-link junction would reduce fabrication complexity, lower electrical noise, and minimize dependence on junction quality. Here, we report an all-vdW, highly efficient, junction-free SDE in NbSe2, enabled by proximity-induced symmetry breaking from a strong uniaxial ferromagnet Fe3GeTe2 (F3GT). Superconducting diode efficiency of up to 30% is achieved at a small magnetic field of 50 mT. A field-free diode rectification effect is realized with diode polarity that is tunable by the F3GT spin polarization. Furthermore, by employing the active-field dependence of the SDE, a two-input exclusive-NOR (XNOR) logic gate operation is demonstrated. The findings highlight the potential utilization of magnetic proximity effect towards realizing junction-free superconducting diodes for high-performance, energy-efficient logic circuits.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.09097",
  "author_total": 2,
  "authors": [
    {
      "name": "Alapan Bera"
    },
    {
      "name": "Soumik Mukhopadhyay"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8kbqj1nekd2z8.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.09097",
  "fulltext_url": null,
  "id": "8kbqj1nekd2z8",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.09097",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.supr-con"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7212058795",
  "pdf_url": "https://arxiv.org/pdf/2609.09097",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8kbqj1nekd2z8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:52Z",
      "native_id": "2609.09097",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.09097"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Junction-free polarity-tunable superconducting diode effect enables XNOR logic operation",
  "title_text": "Junction-free polarity-tunable superconducting diode effect enables XNOR logic operation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:52Z",
  "url": "https://research.draconitic.com/paper/8kbqj1nekd2z8",
  "venue": "arXiv",
  "versions": []
}