Atomic-layer-resolved composition and electronic structure of the cuprate Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ from soft x-ray standing-wave photoemission

Cheng-Tai Kuo, Shih-Chieh Lin, Giuseppina Conti +16

A major remaining challenge in the superconducting cuprates is the unambiguous differentiation of the composition and electronic structure of the CuO${}_2$ layers and those of the in…