Multimodal Terahertz Spectroscopy of the Pairing Symmetry and Normal-State Pseudogap in (La,Pr)${}_3$Ni${}_2$O${}_7$ Films

Shuxiang Xu, Guangdi Zhou, Hao Wang +11

The discovery of ambient-pressure superconductivity in compressively strained (La,Pr)${}_3$Ni${}_2$O${}_7$ thin films has intensified efforts to identify the pairing mechanism. However,…