Abstract
A new LEED structural analysis is carried out for the (1 × 5) reconstruction of Ir(100). It is based on a recent set of experimental I–V curves obtained with a computer-controlled video camera. Special attention is paid to reproducibility and reliability, and an R−factor analysis is now included. The previously preferred structure (a buckled top layer that is quasi-hexagonally close-packed and involves bridge sites) is confirmed with minor positional adjustments comparable to the uncertainty of the method. The other structural models that have been examined can clearly be rejected.
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