Accession Number : AD0741244

Title :   Absolute Intensity Measurements of Elastic and Inelastic Low Energy Electron Diffraction from Al (100),

Corporate Author : ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s) : Burkstrand,James Michael

Report Date : APR 1972

Pagination or Media Count : 54

Abstract : Elastic and inelastic low energy electron diffraction (ELEED, ILEED) observations have been made on a clean surface of Al(100). Measurements on the (10) and (11) elastic diffractions beams were made using normally incident electrons in the energy range 30 = or < E = or < 170 eV. Two types of structure are observed in the inelastic angular profiles: one closely correlated with the structure in the elastic angular profile, and the second being substructure corresponding to different ILEED conditions. Energy intensity profiles (as a function of incident energy) for the (10) and (11) elastic + inelastic diffraction beams have been measured. These profiles also show primary and secondary structure. Within the substructure of the angular and energy intensity profiles are the firs experimental observations of sideband diffraction. A comparison of the experimental results and the theoretical predictions of different models is made. (Author)

Descriptors :   (*ELECTRON DIFFRACTION, ALUMINUM ALLOYS), (*ALUMINUM ALLOYS, SURFACE PROPERTIES), ELASTIC SCATTERING, INELASTIC SCATTERING, INTENSITY

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE