An unusually strong electron attraction in doped 1D cuprate (IMAGE)
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An illustration depicts an unexpectedly strong attraction between electrons in neighboring lattice sites within a 1D chain of copper oxide, or cuprate – a material that conducts electrical current with no loss at relatively high temperatures. A study led by Stanford, SLAC and Clemson discovered this unusually strong “nearest-neighbor” attraction in a 1D cuprate chain that had been “doped” to increase the density of its free electrons. They said the unexpected strength of the attractions may result from interactions with natural vibrations in the material’s atomic lattice, which may play a role in cuprate superconductivity.
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SCI-HUA
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