Energy Levels (IMAGE) Georgia Institute of Technology Caption These are variations in the energy profile of the crystal under increasing applied electric field, showing a change a phase change in the material. Credit Credit: Hamidreza Khassaf, University of Connecticut 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.