{
  "abstract": "Kagome superconductors AV3Sb5 (A = K, Rb, Cs) offer an outstanding platform for exploring the interplay among charge-density-wave (CDW) order, superconductivity (SC), and nontrivial topological electronic states. For CsV3Sb5, moderate hydrostatic pressure induces a double-dome superconducting phase diagram while monotonically suppressing the CDW phase, which signals an unconventional coupling between SC and CDW. Nevertheless, the microscopic nature of the pressure-modulated superconducting state and its relationship with CDW order remain poorly understood. Here we employ soft directional point-contact spectroscopy (SDPCS), combined with superconducting resistive measurements, to probe the superconducting order parameter of CsV3Sb5 under hydrostatic compression. Our anisotropic PCAR measurements resolve two distinct s-wave superconducting gaps along the c-axis and a strongly anisotropic gap within the ab plane. Two-band Blonder-Tinkham-Klapwijk (BTK) fits to the c-axis spectra yield a large gap satisfying 2Delta1/kBTc > 3.52 and a small gap with 2Deltas/kBTc < 3.52. The spectral-weight-averaged coupling ratio 2Deltaavg/kBTc is enhanced in the pressure window between P1 and P2, suggesting that pressure-induced modifications of the low-energy electronic structure may contribute to the evolution of superconductivity. For ab-plane junctions, the superconducting gap anisotropy is gradually suppressed above P1, accompanied by the emergence of a pronounced peak-dip-hump structure suggestive of enhanced coupling between superconducting quasiparticles and a bosonic excitation. These results shed new light on the intricate entanglement between CDW and SC in kagome superconductivity.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.16253",
  "author_total": 10,
  "authors": [
    {
      "name": "Haiyan Zuo"
    },
    {
      "name": "Wangju Yang"
    },
    {
      "name": "Zhifan Wu"
    },
    {
      "name": "Yuqing Zhao"
    },
    {
      "name": "Qiuxia Chen"
    },
    {
      "name": "Weiming Lao"
    },
    {
      "name": "Yangpeng Qi"
    },
    {
      "name": "Hechang Lei"
    },
    {
      "name": "Haizi Cong"
    },
    {
      "name": "Cong Ren"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ffbnkjpj8w0wr.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.16253",
  "fulltext_url": null,
  "id": "ffbnkjpj8w0wr",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.16253",
  "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.supr-con"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7221784864",
  "pdf_url": "https://arxiv.org/pdf/2610.16253",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ffbnkjpj8w0wr.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.16253",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.16253"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.supr-con",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Pressure Evolution of the Superconducting Order Parameter of Kagome Superconductor CsV3Sb5",
  "title_text": "Pressure Evolution of the Superconducting Order Parameter of Kagome Superconductor CsV3Sb5",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/ffbnkjpj8w0wr",
  "venue": "arXiv",
  "versions": []
}