Tungsten Ditelluride Crystal (IMAGE) Princeton University Caption A crystal of tungsten ditelluride is shown. Credit Wudi Wang and N. Phuan Ong, Princeton University Usage Restrictions Wudi Wang and N. Phuan Ong, Princeton University 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.