Element-Specific Orbital Character in a Nearly-Free-Electron Superconductor Ag${}_5$Pb${}_2$O${}_6$ Revealed by Core-Level Photoemission

Soobin Sinn, Kyung Dong Lee, Choong Jae Won +8

Ag${}_5$Pb${}_2$O${}_6$ has attracted considerable attention due to its novel nearly-free-electron superconductivity, but its electronic structure and orbital character of the Cooper-pai…