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Science  14 May 1999:
Vol. 284, Issue 5417, pp. 1083
DOI: 10.1126/science.284.5417.1083d

The ideal superconductor would lose resistance to the flow of electrons at room temperature, but one promising superconductor—copper oxide materials—drops its defenses only at frustratingly chilly temperatures. The Enhanced Perspective on p. 1137 looks at new data on several superconductor types that may help explain why. Online links include a high-temperature superconductor newsletter, course materials, company information, and images.

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