Xiang Zhang, Berkeley Lab (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Xiang Zhang directs Berkeley Lab's Materials Sciences Division. Credit (photo by Roy Kaltschmidt, Berkeley Lab) 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.