Abstract
We propose a simple model of the electron spectrum of a two-dimensional system with hot sections on the Fermi surface that significantly transforms the spectral density (pseudogap) in these sections. Using this model, we set up a Ginzburg-Landau expansion for s and d type Cooper pairing and analyze the effect of the pseudogap in the electron spectrum on the main properties of a superconductor.
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Zh. Éksp. Teor. Fiz. 115, 632–648 (February 1999)
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Posazhennikova, A.I., Sadovskii, M.V. The Ginzburg-Landau expansion in the simple model of a superconductor with a pseudogap. J. Exp. Theor. Phys. 88, 347–355 (1999). https://doi.org/10.1134/1.558803
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DOI: https://doi.org/10.1134/1.558803