The structural properties of Si(110)1 × 1-Bi surfaces

Abstract

The structure of Si(110)1 × 1-Bi is studied using tensor LEED. From the features of the LEED patterns, the geometrical model where zigzag chains of Bi atoms are formed along the [1, −1, 0] direction is assumed. However, the experimental I-V curves cannot be explained by this model. Rather, I-V curves calculated from the geometrical model where zigzag chains are composed of Si atoms are in excellent agreement with the experimental ones. This result suggests that the Bi overlayer is short-range-ordered.