Theory of Differential Conductance of Co on Cu(111) Including Co s and d Orbitals, and Surface and Bulk Cu States

We revisit the theory of Kondo effect observed by a scanning-tunneling microscope (STM) for transition-metal atoms (TMAs) on noble-metal surfaces, including $d$ and $s$ orbitals TMA, surface bulk conduction states metal, their hopping to tip STM. Fitting experimentally STM differential conductance Co Cu(111) both feature near Fermi energy resonance below band, we conclude that senses mainly orbital antiresonance is due interference between with electrons in localized mediated states.