Reconstructions and step structures on vicinal Si(001) surfaces by interaction with Bi
Young Joo Lee; Sung Yong Lee; Sehun Kim; Young Joo Lee; Department of Chemistry and Center for Molecular Science, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea; Sung Yong Lee; Department of Chemistry and Center for Molecular Science, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea; Sehun Kim; Department of Chemistry and Center for Molecular Science, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
Журнал:
Journal of Physics: Condensed Matter
Дата:
1999-03-01
Аннотация:
Reconstructions and step structures on vicinal Bi:Si(001) surfaces are studied under various substrate temperatures and Bi coverages. The observed reconstructions are , , and phases. For step distributions, alternative domain configurations with single layer steps are observed. The population ratios of A terrace to B terrace depend on the substrate temperatures. The observed reconstructions and step distributions are explained by the large size of the Bi atom compared with Si, the anisotropic stress tensor, and the local atomic structure in the step.
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