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BCS theory |
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BCS theory: see superconductivity superconductivity, abnormally high electrical conductivity of certain substances. The phenomenon was discovered in 1911 by Kamerlingh Onnes, who found that the resistance of mercury dropped suddenly to zero at a temperature of about 4.2°K;.
..... Click the link for more information. . BCS theoryComprehensive theory that explains the behaviour of superconducting materials. It was developed in 1957 by John Bardeen, Leon Cooper, and J. Robert Schrieffer (b. 1931), whose surname initials provide its name. Cooper discovered that electrons in a superconductor are grouped in pairs (Cooper pairs) and that the motions of all the pairs within a single superconductor constitute a system that functions as a single entity. An electric voltage applied to the superconductor causes all Cooper pairs to move, forming an electric current. When the voltage is removed, the current continues to flow because the pairs encounter no opposition. See also superconductivity. BCS theory [¦bē¦sē¦es ‚thē·ə·rē] (solid state physics) Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Properties and the BCS theory of Superconductors are discussed. Unfortunately, there were two fateful flaws in the BCS theory that resulted in a failure to correctly apply the currency principle on the policy level. Chapters cover the BCS theory of nodal superconductors, highly correlated particle systems and the composite operator method, diagonalization- and numerical renormalization-group-based methods for interacting quantum systems, and unconventional superconductivity. |
BCS theory |
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