Journal
SURFACE SCIENCE
Volume 451, Issue 1-3, Pages 203-207Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0039-6028(00)00028-5
Keywords
alkali halides; atomic force microscopy; electron stimulated desorption (ESD); insulating surfaces; radiation damage; surface structure, morphology, roughness and topography
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Electron stimulated desorption of the KBr(001) surface due to 1 keV electron bombardment was investigated in an ultra-high vacuum by means of non-contact atomic force microscopy. Characteristic structures like rectangular bores of monolayer depth and small agglomerations of atoms were observed. The dependence of the structure size and density was measured as a function of the electron dose. Analysis of the experimental data indicates that the process of desorption occurs in a layer-by-layer mode and that the efficiency of the process was influenced by the surface topography. (C) 2000 Elsevier Science B.V. All rights reserved.
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