Abstract
New and previously published AES data on monolayer and surface compound formation during the first stages of deposition of lead on gold are critically examined. The system serves as a 'test case' for quantitative AES. Comparison of results obtained with different single crystals substrates and with different spectrometers show quantitative differences of up to a factor of two. It is not possible to deduce the composition of the surface compound that forms after the first simple monolayer. From experiments in which the primary incident electron energy was varied, evidence is found for unusual diffraction effects in the surface layers. The 72 eV Auger electrons from gold have a wavelength equal to the gold atomic radius. This coincidence would lead to strong diffraction and could partly explain the large discrepancies between different experiments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.