Schematics (IMAGE) University of California - Riverside Caption Illustration of the measurement setup. The monolayer WTe2 flake sits on a SiO2/Si substrate and is covered by a thin hexagonal boron nitride (hBN) flake to protect it from degradation. Credit Cui lab, UC Riverside. 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.