Electronic layer decoupling driven by density-wave order in La${}_4$Ni${}_3$O${}_{10}$

Ziqiang Guan, Sophia F. R. TenHuisen, M. Tepie +14

We probe the density-wave transition of the trilayer nickelate La${}_4$Ni${}_3$O${}_{10}$ with polarization-resolved infrared spectroscopy. The low-energy electrodynamics is strongly ani…