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Posted: July 10, 2006

Scientists attain control of how electrons move through a nano-transistor

(Nanowerk News) Today, all electronics are based on transistors. Danish scientists are leading within the field of creating the smallest transistors called nano-transistors. Two physicists from the Nano-Science Centre at the University of Copenhagen have now attained unsurpassed control of the migration of electrons in a nano-transistor. By using quantum physics, the scientists have made the electrons ‘communicate’ with each other.
In a recent experiment, carried out at temperatures near absolute zero, the scientists show how electrons through their socalled spin establish a quantum mechanic cohesion and thereby help each other through the molecule in the nano-transistor.
This achievement is not only a breakthrough in the fundamental research of nanotechnology; it also influences the development of tomorrow’s electronics, e.g. future super-fast quantum-computers.
The result is attained through an international collaboration with physicists from Harvard University and Universität Karlsruhe, and was published in Nature Physics ("Non-equilibrium singlet–triplet Kondo effect in carbon nanotubes") on July 4, 2006.
Source: The University of Copenhagen
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