EmagGeek writes "University researchers have created a transistor by replacing just seven atoms of silicon with phosphorous. The seven-atom transistor has very hopeful implications for the future of quantum cryptography, nuclear and weather modeling, and other applications.
"The significance of this achievement is that we are not just moving atoms around or looking at them through a microscope," says Professor Michelle Simmons, a co-author of a paper on the subject that is being published by Nature Nanotechnology. The paper is entitled "Spectroscopy of Few-Electron Single-Crystal Silicon Quantum Dots".
"We are manipulating individual atoms and placing them with atomic precision, in order to make a working electronic device," elaborated Simmons. "We have replaced just seven individual silicon atoms with phosphorus atoms. That is amazing exactness"."
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