Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift

M. Neupane, P. Richard, Y. -M. Xu +12

We have performed a systematic photoemission study of the chemical potential shift as a function of carrier doping in a pnictide system based on BaFe${}_2$As${}_2$. The experimentally…