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Photos: Transistors powered by single electrons

February 2, 2006 11:40 AM PST

Scientists from the National Institute of Standards and Technology and NTT Corp. of Japan have demonstrated the first reproducible, controllable silicon transistors that are turned on and off by the motion of individual electrons.

This colorized micrograph shows three tunable gates across an electrical channel in a single electron tunneling (SET) transistor.

Photo by NTT/NIST

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