The Structure of an LSAT Crystal (IMAGE) North Carolina State University Caption This image shows the atomic structure and electron distribution in the lanthanum strontium aluminum tantalum oxide (LSAT) crystal. Credit James LeBeau, North Carolina State University Usage Restrictions Image credit must be given. 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.