Superconducting (SC) properties of the kagome-lattice superconductor CsV3Sb5were investigated via 121Sb nuclear quadrupole resonance and 51V NMR. A clear Hebel-Slichter peak indicates conventional superconductivity in zero field, while enhanced spin fluctuations deep in the SC state might suggest unconventional features induced by magnetic field.
- Masaki Shibata
- Hidemitsu Takahashi
- Zhiwei Wang