APCRS spectra of SiO<sub>2</sub> (IMAGE) National Institutes of Natural Sciences Caption Figure 3 Atomic point contact Raman spectra obtained at a partially oxidized area over the Si(111)-7×7 surface (indicated by the arrow in the STM image). Credit NINS/IMS Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.