Abstract
Abstract Fourier transformation of experimental energy-dependent photoelectron diffraction (PED) data has been used to image independently the local structure of the two inequivalent adsorption sites of Sb at the GaAs(110)–p(1×1)Sb interface. This approach is analogous to several recently developed direct methods, even though it does not take into account the atomic scattering phase shifts. Our results show that even this simple direct inversion is able to provide the real-space images corresponding to the two inequivalent Sb adatoms. The approximate structure obtained could be used as a starting point for a traditional ‘trial and error’ analysis, which refines and provides an accurate surface structure.
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