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Combining scanning tunneling microscopy (STM) and X-ray photoelectron (XPS) as well as Auger spectroscopy, we establish a direct relationship between the morphology and the excitation spectra of ultrathin MgO(001) films on Ag(001), and we show that monolayer MgO(001) films do not exhibit significant morphology changes upon H 2 O dosage, with the constituent islands remaining monoatomically...
The reaction of water has been investigated on the surfaces of stoichiometric and oxygen defected UO 2 (111) single crystal. On the stoichiometric surface most of the adsorption of H 2 O molecules at 300 K is reversible (>80%). The remaining water on the surface desorbs in two TPD peaks at 400 and 530 K with no evidence for H 2 formation. On the contrary on Ar + ...
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