Interstitial oxygen order and its competition with superconductivity in La${}_2$PrNi${}_2$O${}_{7+\delta }$

Zehao Dong, Gang Wang, Ningning Wang +6

High-temperature superconductivity in bilayer nickelate La${}_3$Ni${}_2$O${}_7$ under pressure has attracted significant interest in condensed matter physics. While early samples exhibit…