Iron-induced superstructure on the ZnSe (001) surface

Abstract
The annealing of one monolayer of iron deposited by molecular-beam epitaxy on ZnSe (001) induces a flat and ordered surface with two kinds of nearly defect-free domains with a large superstructure. Combining x-ray photoelectron spectroscopy and scanning tunneling microscopy results, we propose a model for the superstructure consisting of ordered Fe vacancies on an (001) iron terminated surface of a zincblende Fe-Se lattice.