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New materials may be computer breakthroughQuicklink submitted by Kyle McDermott Permalink |
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 Organic topological insulators are made from a thin molecular sheet (left) that resembles chicken wire and conducts electricity on its right edge (blue line) -- with the electrons carrying more information in the form of "up" spin. by Zhengfei Wang and Feng Liu, University of Utah |
'Superfast' materials that shuttle information at the speed of light in quantum computers and other electronic devices are on the horizon, U.S. researchers say. University of Utah engineers report the ability to build the first organic materials, dubbed organic topological insulators, that conduct electricity on their edges but act as an insulator inside. In a topological insulator, electrons known as Dirac fermions behave like massless or weightless packets of light, conducting electricity as they move very fast along a material's surface or edges. We have demonstrated a system with a special type of electron - a Dirac fermion - in which the spin motion can be manipulated to transmit information,' Liu said. Such particles can contain and carry information because the spin can be switched 'up' or 'down.' 'This is advantageous over traditional electronics because it's faster...' |
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