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

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.

14 pages, 14 figures, RevTeX 3.0, Postscript figures attached, some changes in the explanation of the model, published in JETP 115, No.2, (1999)

References in corpus (2)

• Evolution of the Fermi surface with carrier concentration in Bi_2Sr_2CaCu_2O_{8+δ}
• Weak Pseudogap Behavior in the Underdoped Cuprate Superconductors

Cited by in corpus (4)

• Quenched disorder formulation of the pseudo-gap problem
• Models of the Pseudogap State in Cuprates
• Peculiarities of electronic heat capacity of thulium cuprates in pseudogap state
• Ginsburg-Landau Expansion in a non-Fermi Superconductor