Ultrafast Optical Evidence of Coexisting Density Waves in Bilayer Nickelate La${}_3$Ni${}_2$O${}_7$

Qi-Yi Wu, De-Yuan Hu, Chen Zhang +13

Utilizing ultrafast optical pump-probe spectroscopy, we investigate the coexistence and competition of electronic orders in the bilayer nickelate La${}_3$Ni${}_2$O${}_7$. Our results rev…