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Monday, November 26, 2007

"MATERIALS: Superinsulators rival superconductors"

Superconducting metals work by binding electrons into pairs called Cooper pairs whose motion can be coupled into long chains of electrons. Those electrons are synchronized with the conductor's lattice vibrations (when cooled near absolute zero), thereby avoiding the collisions with metal atoms that define resistance. Now a Brown University researcher claims to have discovered Cooper pairs in superinsulators that, when cooled near absolute zero, offer infinite resistance--acting as perfect blocks to conduction. Superinsulators may someday be wired together with superconductors to create supercircuits that generate zero heat.
Text: http://www.eetimes.com/showArticle.jhtml?articleID=204203307