Superconductivity from repulsion: Ginzburg-Landau phenomenology of cuprates

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We develop Ginzburg-Landau approach to the problem of superconducting pairing with large momentum under screened Coulomb repulsion (eta_K-pairing). Two-component order parameter arising in this scheme can be associated with charge and orbital current degrees of freedom of the relative motion of eta_K-pair corresponding to superconducting and orbital antiferromagnetic ordered states, respectively. All basic features of the phase diagram of cuprate superconductors result directly from the eta_K-pairing concept.
8 pages with 4 figures

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Superconductivity, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/108497

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0603099
 http://arxiv.org/abs/cond-mat/0603099

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arXiv