Fermi Surface and Band Renormalization in (Sr,K)Fe${}_2$As${}_2$ Superconductor from Angle-Resolved Photoemission Spectroscopy

Haiyun Liu, Wentao Zhang, Lin Zhao +16

High resolution angle-resolved photoemission measurements have been carried out on (Sr,K)Fe${}_2$As${}_2$ superconductor (Tc=21 K). Three hole-like Fermi surface sheets are clearly res…