Close-Up of the Device (IMAGE) ICFO-The Institute of Photonic Sciences Caption Close-up of the device (the twisted bilayer graphene structure is in the black center region on both squares with gold borders). This device is placed on the experimental setup within the fridge. Credit ©ICFO 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.