Physical Review B
The H-induced shift of the surface-atom core-level binding energy in W(110) is shown to arise from two distinct effects, one chemical in nature and the other structural. The structural shift supports a recently proposed (1p×1) reconstruction that turns on at ∼0.5 monolayer coverage. These new findings are used to provide a self-consistent interpretation of previously reported shifts from H-covered W(111) and W(100) surfaces.
"Chemical and Reconstruction Induced Surface Core-Level Shifts: H on Low-Index W Surfaces," D. M. Riffe, G. K. Wertheim, and P. H. Citrin, Phys. Rev. Lett. 65, 219 (1990).