Physicists from Australian and America have successfully made a transistor that is just one atom wide, using a phosphorus atom embedded in a silicon substrate.

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Single Electron Transistor

A team of researchers at the University of Pittsburgh, collaborated with another team from the University of Wisconsin at Madison, to create a transistor, which is just an atomic diameter in size and can be switched on and off by just one or two electrons. These transistors can further be used as solid state devices, such as fast quantum processors (which might replace the current Si processors) and extremely dense memory devices.

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Graphite Structure

IBM on Tuesday, 12th April, announced that they have made the world’s fastest graphene transistor and also hinted at the fact that they might go into commercial production very soon. This is major news to the hardware industry, as graphene might revolutionize the current semi-conductor industry scenario. Graphene may even be good enough to replace silicon, the standard material used in all of today’s semi-conductor devices.

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