Highly Robust Reentrant Superconductivity in CsV₃Sb₅ under Pressure

We present the superconducting (SC) property and high-robustness of structural stability of kagome CsV 3 Sb 5 under in situ high pressures. For the initial SC-I phase, its T c is quickly enhanced from 3.5 K to 7.6 K and then totally suppressed at P ∼ 10 GPa. With further increasing pressure, an SC-II phase emerges at P ∼ 15 GPa and persists up to 100 GPa. The T c rapidly increases to the maximal value of 5.2 K at P = 53.6 GPa and slowly...