{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Roppongi M"],"funding":["MEXT | Japan Society for the Promotion of Science","MEXT | Japan Science and Technology Agency (JST)","MEXT | Japan Society for the Promotion of Science (JSPS)","National Science Foundation (NSF)","National Science Foundation","MEXT | Japan Science and Technology Agency"],"pagination":["667"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9905511"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14(1)"],"pubmed_abstract":["The recently discovered kagome superconductors AV<sub>3</sub>Sb<sub>5</sub> (A = K, Rb, Cs) exhibit unusual charge-density-wave (CDW) orders with time-reversal and rotational symmetry breaking. One of the most crucial unresolved issues is identifying the symmetry of the superconductivity that develops inside the CDW phase. Theory predicts a variety of unconventional superconducting symmetries with sign-changing and chiral order parameters. Experimentally, however, superconducting phase information in AV<sub>3</sub>Sb<sub>5</sub> is still lacking. Here we report the impurity effects in CsV<sub>3</sub>Sb<sub>5</sub> using electron irradiation as a phase-sensitive probe of superconductivity. Our magnetic penetration depth measurements reveal that with increasing impurities, an anisotropic fully-gapped state changes to an isotropic full-gap state without passing through a nodal state. Furthermore, transport measurements under pressure show that the double superconducting dome in the pressure-temperature phase diagram survives against sufficient impurities. These results support that CsV<sub>3</sub>Sb<sub>5</sub> is a non-chiral, anisotropic s-wave superconductor with no sign change both at ambient and under pressure."],"journal":["Nature communications"],"pubmed_title":["Bulk evidence of anisotropic s-wave pairing with no sign change in the kagome superconductor CsV<sub>3</sub>Sb<sub>5</sub>."],"pmcid":["PMC9905511"],"funding_grant_id":["JP18KK0375","JP21H01793","DMR-1906325","JPMJCR19T5","JP20H05869","JP19H05824","JP22K18683","JP19H00649","JP22H00105","JP22K18681","JP22K20349","JP18H05227","JP22J21896"],"pubmed_authors":["Mukasa K","Ogawa K","Ishihara K","Okada K","Grasset R","Liu S","Shibauchi T","Tanaka Y","Konczykowski M","Roppongi M","Mizukami Y","Wilson SD","Uwatoko Y","Ortiz BR","Hashimoto K"],"additional_accession":[]},"is_claimable":false,"name":"Bulk evidence of anisotropic s-wave pairing with no sign change in the kagome superconductor CsV<sub>3</sub>Sb<sub>5</sub>.","description":"The recently discovered kagome superconductors AV<sub>3</sub>Sb<sub>5</sub> (A = K, Rb, Cs) exhibit unusual charge-density-wave (CDW) orders with time-reversal and rotational symmetry breaking. One of the most crucial unresolved issues is identifying the symmetry of the superconductivity that develops inside the CDW phase. Theory predicts a variety of unconventional superconducting symmetries with sign-changing and chiral order parameters. Experimentally, however, superconducting phase information in AV<sub>3</sub>Sb<sub>5</sub> is still lacking. Here we report the impurity effects in CsV<sub>3</sub>Sb<sub>5</sub> using electron irradiation as a phase-sensitive probe of superconductivity. Our magnetic penetration depth measurements reveal that with increasing impurities, an anisotropic fully-gapped state changes to an isotropic full-gap state without passing through a nodal state. Furthermore, transport measurements under pressure show that the double superconducting dome in the pressure-temperature phase diagram survives against sufficient impurities. These results support that CsV<sub>3</sub>Sb<sub>5</sub> is a non-chiral, anisotropic s-wave superconductor with no sign change both at ambient and under pressure.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Feb","modification":"2025-04-04T23:52:42.845Z","creation":"2025-04-04T23:52:42.845Z"},"accession":"S-EPMC9905511","cross_references":{"pubmed":["36750576"],"doi":["10.1038/s41467-023-36273-x"]}}