Graphene's new rival

Graphene has become the darling of the postsilicon crowd in the eight years since Andre Geim and Konstantin Novoselov isolated it by ripping Scotch tape off a chunk of graphite. But there are other two-dimensional nanowonders. Molybdenum disulfide (MoS
₂
), which can be pulled off a block of molybdenite through the same process, could offer new approaches to making high-speed logic circuits-on its own or in combination with graphene.