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The Sr-induced structural evolution of Si(114)-2×1, through depositing SrF2 on the reconstructed surface held at 800°C, has been investigated by scanning tunneling microscopy. By submonolayer of adsorbed Sr atoms, any well-defined facet besides (113) has not been formed on the clean Si(114)-2×1 surface, while a well-ordered and sawtooth-like structure composed of a (113) facet and its compensating...
When CaF2 molecules are deposited on Si(114)-2×1 held at 500°C, two kinds of isolated and symmetric Ca-silicide units are initially formed. With increasing CaF2 deposition to 0.4ML, instead of the terrace being filled with them, a trench composed of (113) and (117) facets appears on the surface as a result of substrate etching induced by dissociated F atoms. Selectively on this (113) facet, a 2×2...
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