Destabilization of the Charge Density Wave and the Absence of Superconductivity in ScVSn under High Pressures up to 11 GPa.

VSn ( = Sc, Y, or rare earth) is a new family of kagome metals that have a similar vanadium structural motif as VSb ( = K, Rb, Cs) compounds. Unlike VSb, ScVSn is the only compound among the series of VSn that displays a charge density wave (CDW) order at ambient pressure, yet it shows no superconductivity (SC) at low temperatures. Here, we perform a high-pressure transport study on the ScVSn single crystal to track the evolutions of the CDW transition and to explore possible SC. In contrast to VSb compounds, the CDW order of ScVSn can be suppressed completely by a pressure of about 2.4 GPa, but no SC is detected down to 40 mK at 2.35 GPa and 1.5 K up to 11 GPa. Moreover, we observed that the resistivity anomaly around the CDW transition undergoes an obvious change at ~2.04 GPa before it vanishes completely. The present work highlights a distinct relationship between CDW and SC in ScVSn in comparison with the well-studied VSb.