Low-temperature mean valence of nickel ions in pressurized La${}_3$Ni${}_2$O${}_7$

Shu Cai, Yazhou Zhou, Hualei Sun +18

The discovery of high critical temperature (Tc) superconductivity in pressurized La${}_3$Ni${}_2$O${}_7$ has ignited renewed excitement in the search of novel high-Tc superconducting com…