Abstract
The structure of the Si(553) surface, tilted at -12.27° toward the (001) plane from the (111) plane, has been studied by scanning tunneling microscopy (STM). The STM images reveal that the Si(553) surface consists of (111) and (331) facets. The (111) facet is composed of a single unit cell of 7×7 (or 5×5) structure, while the (331) facet is composed of a 1×1 structure. As the results of high-temperature STM (HT-STM) observations at 600 °C show a noise-like glimmering pattern due to atomic migration is observed around the (331) facet.
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