Disappearing Superconductivity Reappears -- in 2-D

(PhysOrg.com) -- Scientists studying a material that appeared to lose its ability to carry current with no resistance say new measurements reveal that the material is indeed a superconductor — but only in two dimensions. Equally surprising, this new form of 2-D superconductivity emerges at a higher temperature than ordinary 3-D superconductivity in other compositions of the same material. The research, conducted in part at the U.S. Department of Energy`s (DOE) Brookhaven National Laboratory, will appear in the November 2008 issue of Physical Review B.

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