Manufacturing Industry
Magnesium-carbon-nickel wire could bridge gap between superconductor theories.(Superconductors)
Advanced Ceramics Report, January, 2005
US researchers have made a wire that--although not a high-temperature superconductor itself--could help them to understand the mechanisms of high-temperature superconductivity.
Made from a magnesium-carbon-nickel (Mg[Cni.sub.3]) compound layered around a carbon fibre, it has a similar crystal structure to the cuprates, although it is simpler and does not contain copper or oxygen, and only superconducts up to about 8 K (-265[degrees]C).
The researchers--from Louisiana State University in Baton Rouge, USA--say that their experimental work suggests that Mg[Cni.sub.3]'s superconducting properties cannot be explained by the standard theory for low-temperature superconductivity. If the new superconductor exhibits properties distinct from other...
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