The chemisorption of H on a (7 9 11) stepped surface was studied by means of low-energy electron diffraction, Auger electron spectroscopy, ultra-violet photo-electron spectroscopy, and work function measurements. Atomic H was chemisorbed onto the surface and led to step rearrangement. Molecules of H were found to be inactive in this respect. It was concluded that step rearrangement was induced by the incorporation of atomic H into the sub-surface region via step sites.

H.Namba, Y.Okawa, H.Kuroda: Surface Science, 1991, 242[1-3], 32-8