Soft Phonon Charge-Density Wave Formation in the Kagome Metal KV${}_3$Sb${}_5$

Yifan Wang, Chenchao Xu, Zhimian Wu +11

A range of of unusual emergent behaviors have been reported in the charge-density wave (CDW) state of the $A$V${}_3$Sb${}_5$ ($A=$K, Rb, Cs) kagome metals, including a CDW formation p…