{
  "abstract": "Understanding how lattice geometry enables superconductivity in oxides remains a central challenge. Here, we report a systematic study of ReO3 up to 80 GPa. Synchrotron X-ray diffraction, Raman spectroscopy, electrical transport, dc magnetic susceptibility, and first-principles calculations establish a sequence of pressure-induced structural transitions, from cubic Pm-3m to Im-3 followed by the emergence of a rhombohedral R-3c phase accompanied by bulk superconductivity with a maximum Tc, onset ~17.5 K. DC magnetic susceptibility and trapped-flux magnetization measurements demonstrate that bulk superconductivity is confined to the pressure range where R-3c phase is dominant. Density functional theory calculations show strong electron-phonon coupling in the hR24-R-3c structure, with substantial contributions from both low-frequency Re vibrations and high-frequency oxygen-related phonon modes, yielding a calculated Tc comparable with the experiment. Upon further compression above ~35-40 GPa, powder X-ray diffraction results indicate a symmetry-lowering structural transition. Whereas the experimental diffraction patterns can be best described by a rhombohedral-derived R32-like average distortion with effective enlargement of the crystallographic unit cell, enthalpy calculations identify a lower-symmetry mP16-P2/c structure driven by phonon instability of the R-3c phase. This reconstructed higher-coordination phase has a reduced density of states at the Fermi level, weaker electron-phonon coupling, and a much lower calculated Tc, providing a microscopic explanation for the loss of bulk superconductivity in the higher-pressure phase. These results show that bulk superconductivity is stabilized within the rhombohedral structure, where pressure-induced lattice reconstruction supports enhanced electron-phonon coupling through cooperative Re-O lattice dynamics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: S. Huyan, R.F.S. Penacchio, L.-L. Wang et al., Materials Today Physics, 67, 102206 (2026)",
  "arxiv": "2609.26628",
  "author_total": 13,
  "authors": [
    {
      "name": "S. Huyan"
    },
    {
      "name": "R. F. S. Penacchio"
    },
    {
      "name": "L-L. Wang"
    },
    {
      "name": "J. Schmidt"
    },
    {
      "name": "D. Zhang"
    },
    {
      "name": "B. Lavina"
    },
    {
      "name": "Z. Li"
    },
    {
      "name": "R. A. Ribeiro"
    },
    {
      "name": "T. J. Slade"
    },
    {
      "name": "J. Zhao"
    },
    {
      "name": "S. L. Morelhão"
    },
    {
      "name": "P. C. Canfield"
    },
    {
      "name": "S. L. Bud'ko"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8er09tybkq6t6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26628",
  "fulltext_url": null,
  "id": "8er09tybkq6t6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26628",
  "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.supr-con"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.26628",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8er09tybkq6t6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.26628",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26628"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "The observation of bulk superconductivity in Rhombohedral ReO3 under pressure",
  "title_text": "The observation of bulk superconductivity in Rhombohedral ReO3 under pressure",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/8er09tybkq6t6",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.mtphys.2026.102206",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}