Sulfur overlayers on the low-index faces of silver

Abstract

The two-dimensional phases formed by sulfur on the (100), (111) and (110) faces of silver single crystals were studied by standard LEED-Auger techniques. On each face, different structures were observed depending on the coverage and the temperature. Most of the phases showed complex LEED diagrams. A remarkable similarity, however, was found among the structures of the phases observed at maximum coverage on the three faces. For these phases, tentative structural models are suggested and discussed.