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The atomic structure of the monatomic steps on the Si(001) surface is investigated by scanning tunneling microscopy. The kink at the intersection of the SA and SB steps induces a strong buckling along the rebonded dimer row in the lower terrace. On the upper terrace of the SB step, the kink induces a local p(22) structure directed toward the center of the step. The strains of second-layer atoms supporting...
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