# ANISOTROPIC FERMI SURFACES AND KOHN–LUTTINGER SUPERCONDUCTIVITY IN TWO DIMENSIONS

@article{Gonzlez1999ANISOTROPICFS, title={ANISOTROPIC FERMI SURFACES AND KOHN–LUTTINGER SUPERCONDUCTIVITY IN TWO DIMENSIONS}, author={J W Gonz{\'a}lez and Francisco Guinea and Mar'ia A. H. Vozmediano}, journal={International Journal of Modern Physics B}, year={1999}, volume={13}, pages={2545-2572} }

The instabilities induced on a two-dimensional system of correlated electrons by the anisotropies of its Fermi line are analyzed on general grounds. Simple scaling arguments allow to predict the opening of a superconducting gap with a well-defined symmetry prescribed by the geometry of the Fermi line. The same arguments predict a critical dimension of 3/2 for the transition of the two-dimensional system to non-Fermi liquid behavior. The methods are applied to the t–t′ Hubbard model in a wide… Expand

#### One Citation

Electronic susceptibilities in systems with anisotropic Fermi surfaces

- Physics
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Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain.(Dated: February 1, 2008)The low temperature dependence of the spin and charge susceptibilities of an… Expand

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