Carbon flatland

Graphene’s two dimensions offer new physics, novel electronics

By Alexandra Witze, 11:24 AM July 28, 2011

Some physicists spend their days exploring the three dimensions of space, the four dimensions of spacetime or even the 11 dimensions of something called M-theory. Other researchers are content with just two.

But fewer dimensions doesn’t mean less science. For seven years, researchers have been enjoying a two-dimensional playground of new physics provided by a superflat material called graphene.

This deceptively simple substance — nothing more than a sheet of honeycombed carbon atoms, which...

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