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15-Mar-2004

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An Explanation For A Universality Of Transition Temperatures In Families Of
Copper Oxide Superconductors, Nature
 









Expert: A remarkable mystery of the copper oxide high-transition-temperature
(Tc) superconductors is the dependence of Tc on the number of CuO2 layers, n, in
the unit cell of a crystal. (...) Here we show that the quantum tunnelling of
Cooper pairs between the layers2 simply and naturally explains the experimental
results, (...). We calculate the bell-shaped curve and show that, if materials
can be engineered so as to minimize the charge imbalance as n increases, Tc can
be raised further.
Source: An Explanation For A Universality Of Transition Temperatures In Families
Of Copper Oxide Superconductors[
http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v428/n6978/full/nature02348_fs.html
], Sudip Chakravarty, Hae-Young Kee, Klaus Volker, DOI: 10.1038/nature02348,
Nature 428, 53 - 55, 04/03/04

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