Effect of surface morphology and magnetic impurities on the electronic structure in cobalt-doped BaFe2As2 superconductors

Qiang Zou, Zhiming Wu, Mingming Fu +8

Combined scanning tunneling microscopy, spectroscopy and local barrier height (LBH) studies show that low-temperature-cleaved optimally-doped Ba(Fe1-xCox)2As2 crystals with x=0.06,…