Graphene flake (IMAGE) University of Göttingen Caption Rasterelektronenmikroskop-Bild einer kontaktierten, zwei Atom dicken, freischwebenden Graphen Flocke, über der eine freischwebende Metallbrücke schwebt. Credit Fabian Geisenhof/Jakob Lenz Usage Restrictions No restrictions. License Public Domain 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.