piezoelectrics (IMAGE) Penn State Caption Schematics of domain structures of barium titanate single crystals (upper panel) and the corresponding piezoelectric coefficient as a function of the domain size and temperature (lower panel), which are calculated by phase-field simulations Credit Chane Research Group, Penn State Usage Restrictions non commercial use only 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.