Structural study of the Pt/Co(0001) interface by low-energy photoelectron diffraction

We describe the structure of platinum ultrathin layers deposited on Co(0001) at room temperature. Photoelectron diffraction (PED) experiments at low energy are reported and a calculation with a single scattering model has been performed. We show that the platinum atoms are ordered more likely in a twinned fcc (t-fcc) structure rather than in a hcp structure.