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. 2015 Dec 11;5:18086. doi: 10.1038/srep18086

Figure 1. The Si(111)n/Si(SC) superlattices composed of Si(111) layers (green) and a defective layer of Seiwatz chains (orange) are shown for (a) n = 3, (b) arbitrary n, and (c) n = 1.

Figure 1

The black parallelepiped represents the unit cell spanned by the lattice vectors, a1, a2, and a3. (d) The orientation of Seiwatz chains on the Si(111) 2 × 1 surface is shown.