Abstract
We propose a method to evaluate measured LEED intensities of substitutionally disordered compounds to yield directly the layer-dependent deviations from the bulk stoichiometry. The method is based on tensor LEED and its modification to simulate the substitution of surface atoms. It is tested via comparison with theoretical data as well as via the application to experimental spectra from substitutionally disordered alloys. The new approach promises large savings of computer time, particularly when complicated structures are under consideration.
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