Distinct Superconducting Gap on Two Bilayer-Split Fermi Surface Sheets in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ Superconductor

Ping Ai, Qiang Gao, Jing Liu +13

High resolution laser-based angle-resolved photoemission measurements were carried out on an overdoped $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ superconductor with a Tc of 75 K. Two Fermi surface s…