Electronic structure of FeS

Here we report the electronic structure of FeS, a recently identified iron-based superconductor. Our high-resolution angle-resolved photoemission spectroscopy studies show two hole-like (\alpha and \beta) and two electron-like (\eta and \delta) Fermi pockets around the Brillouin zone center and corner, respectively, all of which exhibit moderate dispersion along k_z. However,... Show more