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By scanning tunneling microscopy and synchrotron photoemission spectroscopy, it has been found that through CaF 2 exposure to the single-domain Si(001)-4° off surface held at 750°C, Si dimers on Si(001) terraces are replaced preferentially by dissociated Ca atoms while F atoms are desorbed. The resulting 2×3 reconstruction saturates the (001) terraces at a coverage between 0.1 and 0.3 monolayers...
The atomic structure and interfacial bonding of the ordered-and-isolated CaF nanowires on Si(5 5 12)-2×1 have been disclosed by scanning tunneling microscopy and synchrotron photoemission spectroscopy. Initially, CaF molecules dissociated from thermally deposited CaF 2 molecules are adsorbed preferentially on the chain structures of Si(5 5 12)-2×1 held at 500°C. With increasing CaF 2 ...
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