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Ginzburg-Landau Expansion in a Toy Model of Superconductor with Pseudogap

A. I. Posazhennikova·M. V. Sadovskii
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Abstract

We propose a toy model of electronic spectrum of two-dimensional system with ``hot-patches'' on the Fermi surface, which leads to essential renormalization of spectral density (pseudogap). Within this model we derive Ginzburg-Landau expansion for both s-wave and d-wave Cooper pairing and analyze the influence of pseudogap formation on the basic properties of superconductors.

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A. I. Posazhennikova, M. V. Sadovskii. 1999-02-12. Ginzburg-Landau Expansion in a Toy Model of Superconductor with Pseudogap. https://doi.org/10.1134/1.558803

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