Early oxidation stages of the strained Ge/Si(105) surface: A reflectance anisotropy spectroscopy study

Abstract

early stages of exposure of the clean surface to molecular\ud oxygen have been monitored by RAS and scanning tunneling\ud microscopy (STM), correlating the evolution of the optical\ud anisotropy to the bonding configuration of the adsorbed gas.\ud Oxygen atoms are proposed to first adsorb onto the arms and\ud later on the head dimers of the “horseshoe” motifs that comprise\ud the RS reconstruction, thus gradually destroying the local orde