Add time:08/05/2019         Source:sciencedirect.com

Quantitative low energy electron diffraction (LEED) studies have been carried out to determine the structure of the rare-earth germanide Ge(1 1 1)1×1–Dy and the rare-earth silicide Si(1 1 1)1×1–Dy. The analyses reveal structures similar to that of other rare-earth silicides previously studied in which the dysprosium is located sub-surface below a reverse-buckled silicon/germanium bilayer. The LEED study has clearly demonstrated that the dysprosium atom is located above a substrate T4 site and refines earlier MEIS results.

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