Figure 2. Atomic structure of the samples (IMAGE) Tokyo Institute of Technology Caption Scanning transmission electron microscopy images were used along with energy-dispersive spectroscopy to determine the atomic composition of the two possible structures of the samples. Credit Nature Communications 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.