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Using one of the world’s most powerful sources of man-made radiation, physicists from UC San Diego, Columbia University and Lawrence Berkeley National Laboratory have uncovered new secrets about the properties of graphene—a form of pure carbon that may one day replace the silicon in computers, televisions, mobile phones and other common electronic devices. A schematic of the graphenedevice and infrared measurement. Credit: UCSD Graphene—a single layer of carbon atoms arranged in a honeycombed lattice—has a number of advantages over silicon. Because it is an optically transparent conductor of electricity, graphene could be used to replace current liquid crystal displays that...