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Published online by Cambridge University Press: 21 February 2011
The structure obtained on annealing sub-monolayer of Au deposited on clean Si(100) surfaces at room temperature was studied using mainly ultrahigh vacuum transmission electron imaging (UHV-HREM). Spots suggesting a 5×1 type reconstruction and faint 1/2 order streaks were seen in the diffraction patterns. The reconstructed wave shows pairs of Au-rows which correspond to the “trenches” reported in an earlier STM study. Lateral disorder across the rows was seen to be responsible for the streaks in the patterns.