Electron stimulated desorption and its relation to molecular structure at surfaces

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Abstract
Recent examples of the use of electron stimulated desorption ion angular distribution (ESDIAD) in determining the structures of molecules on surfaces are discussed. These include the adsorption and decomposition of NH3 on Fe(100), and the stabilization of H2O on Ag(110) by impurity O and Br atoms. ESDIAD evidence for ‘‘lying down’’ CO on several surfaces is presented, and the influence of beam damage in producing new surface structures for H2O on Ni(110) is discussed. Calculations of the influence of the surface image potential and reneutralization effects on ion trajectories are described briefly.

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