LEED INVESTIGATION OF THE Pb AND Sb ULTRATHIN LAYERS DEPOSITED ON THE Ni(111) FACE AT T=150–900 K

Abstract

The atomic structure of ultrathin lead and antimony layers deposited on the Ni (111) face in ultrahigh vacuum at a substrate temperature ranging from 150 to 900 K was investigated with the use of low-energy electron diffraction (LEED). LEED patterns corresponding to p(1×1), p(3×3), p(4×4), [Formula: see text] structures and p(1×1), p(2×2), [Formula: see text], [Formula: see text] structures for the adsorption of Pb and Sb, respectively, on the Ni (111) face were observed. Experimental LEED intensity-versus-energy [I(V)] spectra have been collected for the clean Ni (111) and for the [Formula: see text], [Formula: see text], [Formula: see text] structures. The I(V) curves obtained for the clean Ni (111) structure are in good agreement with experimental spectra from the literature.