Materials Under Pressure (IMAGE) Carnegie Institution for Science Caption This is an artist's conception of how applying pressure in the diamond anvil cell changes the electronic structure of lead selenide. Credit Courtesy of Xiao-Jia Chen Usage Restrictions With credit 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.