News tagged with physical review letters

How 'transparent' is graphene?

The amazing electrical, optical and strength properties of graphene, a single-atom-thick layer of carbon, have been extensively researched over the last decade. Recently, the material has been studied as ...

Dec 03, 2012 4.8 / 5 (9) 2 | with audio podcast

Is dark energy static or dynamic?

(Phys.org)—While hypothesized dark energy can explain observations of the universe expanding at an accelerating rate, the specific properties of dark energy are still an enigma. Scientists think that dark energy could take ...

Nov 12, 2012 4.5 / 5 (19) 48 | with audio podcast feature