{
  "abstract": "Superconductivity emerging from or in the vicinity of magnetic states is generally considered to be mediated by spin fluctuations and thus lies beyond the scope of conventional electron-phonon coupled BCS framework. Here we report the emergence of novel ferromagnetism in the d-electron rhodium sulfide Rh17S15 superconductor, characterized by an enhanced Sommerfeld coefficient γ arising from the flat topological band and many-body correlations. We further demonstrate that the ferromagnetism can be tuned via Fe substitution at the Rh sites, leading to a spin glass ground state induced by the competing ferromagnetic and antiferromagnetic exchange interactions. Fe doping results in a further enhancement of both the γ and electron effective masses. At a doping level of x = 0.67 in Rh17-xFexS15, γ reaches 312 mJ mol-1K-2, second only to the well-documented d-electron heavy-fermion material LiV2O4. Furthermore, upon applying pressure, superconductivity is first suppressed; under high pressures, however, we observe the reentrant superconductivity in both pristine and Fe-doped samples. Our results not only demonstrate the unusual magnetic states and possible heavy-fermion features in these frustration-free, d-based superconductors, but also suggest that the superconductivity in this system is likely mediated by the intrinsic spin fluctuations and may thus be unconventional.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Advanced Science 2026",
  "arxiv": "2609.12351",
  "author_total": 19,
  "authors": [
    {
      "name": "Yalei Huang"
    },
    {
      "name": "Lu Xin"
    },
    {
      "name": "Na Zuo"
    },
    {
      "name": "Bin Li"
    },
    {
      "name": "Wei Zhou"
    },
    {
      "name": "Dhanarajagopal Alltrin"
    },
    {
      "name": "Boning Yu"
    },
    {
      "name": "Haiyang Yang"
    },
    {
      "name": "Bin Qian"
    },
    {
      "name": "Wen-Chin Lin"
    },
    {
      "name": "Raman Sankar"
    },
    {
      "name": "Michael Smidman"
    },
    {
      "name": "Xiangzhuo Xing"
    },
    {
      "name": "Chunqiang Xu"
    },
    {
      "name": "Xiaobing Liu"
    },
    {
      "name": "Jianhui Dai"
    },
    {
      "name": "Dong Qian"
    },
    {
      "name": "Shiyan Li"
    },
    {
      "name": "Xiaofeng Xu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1yh6zsdfcejvx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12351",
  "fulltext_url": null,
  "id": "1yh6zsdfcejvx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12351",
  "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.str-el"
    ],
    [
      "arxiv",
      "cond-mat.supr-con"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.12351",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1yh6zsdfcejvx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12351",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12351"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Emergent magnetism, heavy electrons and pressure-induced reentrant superconductivity in the iron substituted 4d transition-metal sulfides",
  "title_text": "Emergent magnetism, heavy electrons and pressure-induced reentrant superconductivity in the iron substituted 4d transition-metal sulfides",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/1yh6zsdfcejvx",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1002/advs.77431",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}