Abstract
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.
Subject
Condensed Matter Physics,General Materials Science
Cited by
3 articles.
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