Absence of Acoustic Phonon Anomaly in a Kagome Metal with Short-ranged Structural Modulation

Weiliang Yao, Supeng Liu, Zifan Xu +9

Kagome lattice $A$V${}_3$Sb${}_5$ ($A$ = K, Rb, and Cs) superconductors without magnetism from vanadium $d$-electrons are intriguing because they have a novel charge density wave (CDW)…