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Science 1 February 2002:
Vol. 295. no. 5556, pp. 786 - 788
DOI: 10.1126/science.295.5556.786
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News Focus

SUPERCONDUCTORS:
MgB2 Trades Performance for a Shot at the Real World

Robert F. Service

Magnesium diboride (MgB2) can't match the properties of high-temperature superconductors, but it is far easier to work with, which may prove even more valuable in the end. After just a year of working with this powdery black compound, researchers have already forged it into long wires, a feat some high-temperature superconductors have yet to match (see sidebar). But MgB2 still faces numerous hurdles before anyone makes any money from it as a superconductor.

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