Multilayer relaxation of the Al(110) surface

Abstract

The surface structure of Al(110) is determined via r-factor comparisons of new measurements at 100K of LEED intensity-energy spectra with spectra calculated by multiple-scattering theory. The structure exhibits a damped, oscillatory relaxation of the interlayer spacings in qualitative agreement with the calculations of Landman et al. (1980). The relaxations of the first three interlayer spacings, expressed as deviations from the bulk value, are found to be Delta d1=-8.4%, Delta d2=+4.9% and Delta d3=-1.6%.