Evidence of spin density waves in La${}_3$Ni${}_2$O${}_{7-\delta }$

Kaiwen Chen, Xiangqi Liu, Jiachen Jiao +6

The recently discovered superconductivity with critical temperature $T_c$ up to 80 K in the double-layer Nickelate La${}_3$Ni${}_2$O${}_{7-\delta }$ under pressure has drawn great attention. H…