An investigation of an alternative method of LEED structural analysis

Tests have been made for the alternative method of LEED structural analysis, proposed recently by Clarke, wherein diffracted beam intensities from experiment and from multiple-scattering calculations are compared at particular energies. This approach appears unreliable in general, although it successfully indicates the topmost interlayer spacing for Ni(311) at individal energies greater than 130 eV. By contrast this method seems less reliable for assessing the top layer registry of Zr(0001), and it is unable to yield the structures of either of the adsorption systems Rh(100)?(2 × 2)-S or Rh(110)?c(2 × 2)-S.