Abstract
Pd-induced surface reconstructions of Si(110) have been studied by scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). After sub-monolayer deposition of Pd on Si(110) at room temperature, Pd clusters are formed and cover the up-and-down terrace structure of the Si(110) surface. After annealing to 870–1070 K, the up-and-down terrace structure disappears and a new structure with two equivalent domains is formed. From LEED observation, the structure is found to be a (4,2)×(-1,3) superstructure. On the basis of high-resolution STM images, a possible structural model of the (4,2)×(-1,3) reconstruction is proposed.
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