Two layers of graphene with an insulating layer of boron nitride a few atoms thick between them constitute the basic structure of a bi-stable graphene transistor. The development at the U.K.'s University of Manchester holds promise across an array of applications. "For more than 40 years, technology has led to ever-smaller transistors ... Scientists are searching for an alternative to silicon-based technology, which is likely to hit the buffers in a few years' time, and graphene may be an answer," commented professor Laurence Eaves, one of the Manchester researchers.

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