Electronic structure of electron-doped BaFe$_{2-x}$Co$_x$As Superconductor class studied by ARPES

State-of-art high resolution angle-resolved photoemission spectroscopic studies have been carried out on the electron doped BaFe$_{2-x}$Co$_x$As Superconductor (Tc=26K). Electronic band structure, Fermi surface topology and superconducting gap evolution would be reported in this presentation. Nature of the spin sensity wave (SDW) state would be discussed from a band nesting point of view.