EXPERIMENTAL AND THEORETICAL-STUDY OF THE ANGULAR RESOLVED AUGER EMISSION L23 OF A SINGLE-CRYSTAL TARGET OF ALUMINUM EXCITED BY ION IMPACT

The measured angular distribution N(θ{symbol}) of the L23 Auger electrons of aluminium excited by Ar+ ion impact on (110) and (111) single crystals have been obtained for several polar angles. Two theoretical models based on a LEED formalism which can be used to calculate these angular distributions were briefly described and compared. There is a fair agreement between the line shape of the experimental and calculated curves. However, the calculated angular distributions have more structures and the calculated anisotropy rates are much larger than the measured ones. © 1979.