Probing La-based nickelates with Ni 1$s$ core-level photoelectron spectroscopy

Daisuke Takegami, Naoki Ito, Koto Fujinuma +15

We present a comparative Ni core level photoemission study of La${}_3$Ni${}_2$O${}_7$, Nd${}_3$Ni${}_2$O${}_7$, and LaNiO${}_3$ using both the Ni $2p$ and the Ni $1s$. We address the challenges…