Mn doped ZnTe(1 1 0)-(1 × 1) surface in resonant photoemission study

The electronic structure of monocrystalline ZnTe was investigated for a clean, relaxed ( 110)-(1 x 1) surface and for the same surface after sequential deposition of Mn atoms. The resonant (Fano-type) photoemission technique was applied. The spectra were measured as energy distribution curves and in the constant initial state mode, for the valence band and Zn 3d core level. At very low Mn coverage (θ < 0.15 nm), manganese interaction with the crystal surface results in creation of ternary alloy Zn 1-x Mn x Te(110) surface. Further increasing of Mn deposition leads to formation of metallic manganese islands on the surface. The successive annealing leads to Mn atoms diffusion and to formation of Zn 1-x Mn x Te at the surface region.