Bismuthene Film (IMAGE) University of Würzburg Caption View of the bismuthene film through the scanning tunnelling microscope. The honeycomb structure of the material (blue) is visible, analogous to graphene. A conducting edge channel (white) forms at the edge of the insulating film (on the right). Credit Photo: Felix Reis 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.