Superconductivity by Kinetic Energy Saving?

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A brief introduction is given in the generic microscopic framework of superconductivity. The consequences for the temperature dependence of the kinetic energy, and the correlation energy are discussed for two cases: The BCS scenario and the non-Fermi liquid scenario. A quantitative comparison is made between the BCS-prediction for d-wave pairing in a band with nearest neighbor and next-nearest neighbor hoppping and the experimental specific heat and the optical intraband spectral weight along the plane. We show that the BCS-prediction produces the wrong sign for the kink at Tc of the intraband spectral weight, even though the model calculation agrees well with the specific heat.
11 pages, ReVTeX, 7 figures in encapsulated postscript

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Superconductivity, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/96495

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0302169
 http://arxiv.org/abs/cond-mat/0302169
 in "Concepts in electron correlation", Edited by A. Hewson and V. Zlatic, Kluwer (2003), p 7-16

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arXiv