Scanning tunnelling microscope image of a silicon surface lithographically prepared for two electrodes and a single transistor atom in the center. Credit: ARC Centre for Quantum Computation and ...

Researchers in Australia have created a single-atom transistor by planting an individual phosphorus dopant atom within a silicon sample with a spatial accuracy of plus or minus one lattice spacing.

Computer chip makers have long struggled to build ever-smaller transistors to allow faster, more powerful computers. Writing in the journal Nature Nanotechnology, a team of scientists describes what ...