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It has been known that the surface reconstruction of 19x19 (hereafter referred to as 19) is induced on to the Si(111) surface by introducing a small amount of Ni adsorbates. The 19 reconstruction has been extensively studied by Auger electron spectroscopy (AES), reflection high energy electron diffraction (RHEED) and scanning tunneling microscopy (STM). In the present paper, we shall report the first...
STM and SEM observations have been made on the 7 7 ordering process of quenched Si(111)-1 1 surface and on quenched metastable atom complexes. All the triangular 7 7 domains nucleated in the 1 1 region have been found to have character 112 . The rate-controlling process for the growth is the nucleation of a faulted half cell at the outermost edge of the triangular domain. Corner holes,...
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