Figure 1 (IMAGE) Nagoya University Caption Thermal treating of metallic magneiusm on gallium nitride semiconductor results in the formation of a distinctive superlattice structure. Magnesium, nitrogen, gallium atoms are shown in orange, blue, and grey, respectively. Credit Jia Wang Usage Restrictions Credit must be given where image is used License Original 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.