{
  "abstract": "Understanding how superconductivity emerges from correlated electronic states is a central challenge in condensed matter physics. The quasi-one-dimensional spin-ladder compound \\bfs\\ serves as a unique platform to study this interplay, as it lacks the two-dimensional square lattice characteristic of most iron-based superconductors. Here, we combine high-pressure x-ray and neutron diffraction, x-ray emission spectroscopy, and electrical transport to map its structural, magnetic, and electronic evolution into the superconducting regime. We \\revised{observe} a striking pressure-induced decoupling: while the long-range stripe-type antiferromagnetic order remains remarkably robust under pressure up to the onset of superconductivity, the local iron magnetic moment is suppressed by nearly 80\\%. This dichotomy \\revised{points to an orbital-selective mechanism}, where specific Fe $3d$ electrons remain localized to sustain magnetism while others delocalize to form the itinerant and superconducting state. \\revised{Superconductivity emerges while long-range magnetic order is still present, revealing that the two coexist in \\bfs, which we attribute to} the selective response of multiorbital electronic degrees of freedom.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.38966",
  "author_total": 11,
  "authors": [
    {
      "name": "Y. Oubaid"
    },
    {
      "name": "N. S. Dhami"
    },
    {
      "name": "P. Fertey"
    },
    {
      "name": "C. V. Colin"
    },
    {
      "name": "C. Ritter"
    },
    {
      "name": "A. Forget"
    },
    {
      "name": "D. Bounoua"
    },
    {
      "name": "J. -P. Rueff"
    },
    {
      "name": "M. Verseils"
    },
    {
      "name": "P. Foury-Leylekian"
    },
    {
      "name": "V. Balédent"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6nq7dney476w6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.38966",
  "fulltext_url": null,
  "id": "6nq7dney476w6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.38966",
  "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.str-el"
    ],
    [
      "arxiv",
      "cond-mat.supr-con"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.38966",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6nq7dney476w6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.38966",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.38966"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Coexistence of superconductivity and magnetic order in BaFe$_2$S$_3$: evidence for orbital-selective delocalization",
  "title_text": "Coexistence of superconductivity and magnetic order in BaFe_2S_3: evidence for orbital-selective delocalization",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:45Z",
  "url": "https://research.draconitic.com/paper/6nq7dney476w6",
  "venue": "arXiv",
  "versions": []
}