Island Growth (IMAGE) DOE/Argonne National Laboratory Caption This image from a simulation shows the formation of islands during layer-by-layer growth of a gallium nitride crystal. In this image, each color corresponds to a different layer and snapshots are shown at different points in time. A new discovery has shown that each layer tends to form in a pattern similar to the preceding layer. Credit Argonne National Laboratory 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.