@article{6aa3e64e460840b483924e6b45ece319,
title = "Local spectroscopic evidence for a nodeless magnetic kagome superconductor CeRu2",
abstract = "We report muon spin rotation (µSR) experiments on the microscopic properties of superconductivity and magnetism in the kagome superconductor CeRu2 with T c ≃ 5 K. From the measurements of the temperature-dependent magnetic penetration depth λ, the superconducting order parameter exhibits nodeless pairing, which fits best to an anisotropic s-wave gap symmetry. We further show that the T c /λ −2 ratio is comparable to that of unconventional superconductors. Furthermore, the powerful combination of zero-field (ZF)-µSR and high-field µSR has been used to uncover magnetic responses across three characteristic temperatures, identified as T 1 ∗ ≃ 110 K, T 2 ∗ ≃ 65 K, and T 3 ∗ ≃ 40 K. Our experiments classify CeRu2 as an exceedingly rare nodeless magnetic kagome superconductor.",
keywords = "kagome lattice, magnetism, muon spin rotation, superconductivity",
author = "C. Mielke and H. Liu and D. Das and Yin, {J. X.} and Deng, {L. Z.} and J. Spring and R. Gupta and M. Medarde and Chu, {C. W.} and R. Khasanov and Hasan, {Z. M.} and Y. Shi and H. Luetkens and Z. Guguchia",
note = "Funding Information: The µSR experiments were carried out at the Swiss Muon Source (SµS) Paul Scherrer Insitute, Villigen, Switzerland. Z G acknowledges useful discussions with Dr Robert Johann Scheuermann. Y S acknowledges the support from the National Natural Science Foundation of China (Grants No. U2032204), and the K C Wong Education Foundation (GJTD-2018-01). M Z H acknowledges visiting scientist support from IQIM at the California Institute of Technology. C W Chu acknowledges support from US Air Force Office of Scientific Research Grant Nos. FA9550-15-1-0236 and FA9550-20-1-0068, the T.L.L. Temple Foundation, the John J. and Rebecca Moores Endowment, and the State of Texas through the Texas Center for Superconductivity at the University of Houston. The magnetization measurements were carried out on the MPMS device of the Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, Villigen, Switzerland (SNSF Grant No. 206021-139082) and on the MPMS3 device at the UZH in Z{\"u}rich, Switzerland (SNSF Grant No. 206021-150784). Funding Information: The µSR experiments were carried out at the Swiss Muon Source (S µS) Paul Scherrer Insitute, Villigen, Switzerland. Z G acknowledges useful discussions with Dr Robert Johann Scheuermann. Y S acknowledges the support from the National Natural Science Foundation of China (Grants No. U2032204), and the K C Wong Education Foundation (GJTD-2018-01). M Z H acknowledges visiting scientist support from IQIM at the California Institute of Technology. C W Chu acknowledges support from US Air Force Office of Scientific Research Grant Nos. FA9550-15-1-0236 and FA9550-20-1-0068, the T.L.L. Temple Foundation, the John J. and Rebecca Moores Endowment, and the State of Texas through the Texas Center for Superconductivity at the University of Houston. The magnetization measurements were carried out on the MPMS device of the Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, Villigen, Switzerland (SNSF Grant No. 206021-139082) and on the MPMS3 device at the UZH in Z{\"u}rich, Switzerland (SNSF Grant No. 206021-150784). Publisher Copyright: {\textcopyright} 2022 The Author(s). Published by IOP Publishing Ltd.",
year = "2022",
month = nov,
day = "30",
doi = "10.1088/1361-648X/ac9813",
language = "English (US)",
volume = "34",
journal = "Journal of Physics Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "48",
}