Hidden phonon-assisted charge density wave transition in BaFe2Al9 revealed by ultrafast optical spectroscopyRemoveLei Wang, Mingwei Ma, Jiangxu Li, Liucheng Chen, Bingru Lu, Xiang Li, Feng Jin, Elbert E. M. Chia, Jianlin Luo, Rongyan Chen, Peitao Liu, Fang Hong, and Xinbo WangPhys. Rev. B 113, 024113 (2026)
