{
  "abstract": "The nature of the superconducting pairing symmetry in the kagome metal CsV$_3$Sb$_5$ and its relationship with the charge density wave (CDW) order are central unresolved issues. Here, we investigate the evolution of superconductivity in CsV$_3$Sb$_5$ under in-situ uniaxial pressure using $^{121}$Sb nuclear quadrupole resonance (NQR). We find that tensile strain significantly enhances the superconducting transition temperature, $T_{\\rm c}$, while the CDW remains unchanged, demonstrating that superconductivity can be tuned independently of the bulk charge order. At a tensile strain of $\\varepsilon$ = +0.90%, the nuclear spin-lattice relaxation rate reveals a remarkable double transition: an upper transition at $T_{\\rm c1}$ = 3.6 K to a nodal gap state, and a lower one at $T_{\\rm c2}$ = 3.0 K characterized by a nodeless gap. These results evidence degenerate superconducting states with different gap symmetry in the kagome metal at ambient pressure which split under strain. Our work demonstrates a high tunability of superconductivity by uniaxial pressure.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Lett. 137, 096003 (2026)",
  "arxiv": "2607.11115",
  "author_total": 11,
  "authors": [
    {
      "name": "Yusuke Takeuchi"
    },
    {
      "name": "Akito Kobayashi"
    },
    {
      "name": "Saki Uchida"
    },
    {
      "name": "Takumi Nagao"
    },
    {
      "name": "Seigo Ogawa"
    },
    {
      "name": "Rui Zhou"
    },
    {
      "name": "Shinji Kawasaki"
    },
    {
      "name": "Fei Song"
    },
    {
      "name": "Hao Ni"
    },
    {
      "name": "Yong Zhao"
    },
    {
      "name": "Guo-qing Zheng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/eqfd0jm2bwkc6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.11115",
  "fulltext_url": null,
  "id": "eqfd0jm2bwkc6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.11115",
  "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/2607.11115",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/eqfd0jm2bwkc6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2607.11115",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.11115"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Strain-Tuned Nodal Superconductivity in the Charge-Ordered Kagome Metal CsV$_3$Sb$_5$",
  "title_text": "Strain-Tuned Nodal Superconductivity in the Charge-Ordered Kagome Metal CsV_3Sb_5",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/eqfd0jm2bwkc6",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/mzgp-2lzb",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}