A New Twist on Superconductivity (IMAGE) Columbia University Caption Applying pressure to twisted bilayer graphene pushes the layer together, and transforms the material from a metal to a superconductor. Credit Ella Maru Studio 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.