{
  "abstract": "We present a systematic study of the temperature-dependent transport properties of Nb- and Al-based superconductor--insulator--thin superconductor--ferromagnet--superconductor (SIsFS) Josephson junctions. By varying the superconducting material and the thickness of the intermediate superconducting layer, we identify three distinct transport regimes: a tunnel-dominated SIS-like regime, a temperature-driven crossover, and a complex weak-link regime. A unified Usadel-based description connects these regimes through the self-consistent pair potential of the intermediate s-layer. While for Al-based devices an SIS-like transport regime is observed, a self-consistent calculation of the s/F/S proximity electrode, combined with perturbative tunnel coupling to the outer electrode, accounts for Nb devices with different thickness of the superconducting interlayer. The calculation places the 10-nm-interlayer sample in a proximity-supported, strongly suppressed s state, close to the SInFS limit in which the interlayer is effectively driven normal (\\textit{n}). A reduced nonlinear long-junction description captures the same limiting physics. The evolution of I_cR_N(T) thereby provides a direct experimental signature of the three transport regimes. Beyond the fundamental interest, the results establish practical design guidelines: Nb junctions with sufficiently thick s interlayers are well suited for high-speed cryogenic memory elements and tunable superconducting parametric amplifiers, while Al junctions are natural candidates for coherent superconducting quantum circuits",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.20268",
  "author_total": 16,
  "authors": [
    {
      "name": "R. Satariano"
    },
    {
      "name": "A. A. Golubov"
    },
    {
      "name": "E. Raja"
    },
    {
      "name": "R. Ferraiuolo"
    },
    {
      "name": "F. Calloni"
    },
    {
      "name": "H. G. Ahmad"
    },
    {
      "name": "A. Vettoliere"
    },
    {
      "name": "N. Poccia"
    },
    {
      "name": "L. Parlato"
    },
    {
      "name": "G. Ausanio"
    },
    {
      "name": "C. Granata"
    },
    {
      "name": "G. P. Pepe"
    },
    {
      "name": "M. Yu. Kupriyanov"
    },
    {
      "name": "F. Tafuri"
    },
    {
      "name": "D. Montemurro"
    },
    {
      "name": "D. Massarotti"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d1rkmnacv5gfd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.20268",
  "fulltext_url": null,
  "id": "d1rkmnacv5gfd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.20268",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.supr-con"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7222327372",
  "pdf_url": "https://arxiv.org/pdf/2610.20268",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d1rkmnacv5gfd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2610.20268",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.20268"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Transport regimes in tunnel ferromagnetic Josephson junctions",
  "title_text": "Transport regimes in tunnel ferromagnetic Josephson junctions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/d1rkmnacv5gfd",
  "venue": "arXiv",
  "versions": []
}