Sb-induced reconstruction of the Si(112) surface

Abstract

Articles you may be interested inFormation of one-dimensional self-assembled silicon nanoribbons on Au(110)-(2×1) Appl. Phys. Lett. 102, 083107 (2013); 10.1063/1.4793536 Long-range order in a multilayer organic film templated by a molecular-induced surface reconstruction: Adsorption of atomic hydrogen on the Si(001) 4×3-In surface studied by coaxial impact collision ion scattering spectroscopy and scanning tunneling microscopy J. Vac. Sci. Technol. B 17, 983 (1999); 10.1116/1.590680Nanometer scale selective etching of Si(111) surface using silicon nitride islandsWe have investigated the Sb-induced reconstruction of the Si͑112͒ surface using low energy electron diffraction ͑LEED͒ and scanning tunneling microscopy ͑STM͒. Upon Sb adsorption on the clean reconstructed Si͑112͒ surface at 300°C, the Si͑112͒-͑111͒1 ϫ 1-Sb surface was obtained. The present STM study gathered the following findings: The Sb-adsorbed Si͑112͒ surface is composed of saw toothlike nanofacets, which are composed of the ͑557͒ plane and the ͑111͒ plane. The ͑557͒ plane consists of about five ͑111͒ planes with five times the width of bulk-terminated ͑111͒1 ϫ 1 unit cell and ͑001͒ plane. It is also about 8.5 Å in height and tilted at a 9.9°angle with respect to the basal plane ͑112͒. Based on observation, it appears that the Sb atoms on the ͑111͒ planes substitute for the topmost Si atoms on the ideal Si͑111͒1 ϫ 1 surface. Based on the STM results, we suggest a structural model and discuss the reconstructing mechanism of nanofacets induced by Sb adsorption.

Growth kinetics of indium metal atoms on Si(1 1 2) surface

“…In the present work, Si(11 2) was chosen among other high index surfaces because of its high stability in comparison to other high index Si surfaces [20,21]. In addition, the Si(11 2) surface is a potential candidate for the growth of self-assembled wires on nanometer scale [16].…”