Accession Number:

AD0741244

Title:

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

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s):

Report Date:

1972-04-01

Pagination or Media Count:

54.0

Abstract:

Elastic and inelastic low energy electron diffraction ELEED, ILEED observations have been made on a clean surface of Al100. 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

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE