Renormalization group analysis of electrons near a Van Hove singularity.

Abstract

A model of interacting two dimensional electrons near a Van Hove singularity is studied, using renormalization group techniques. In hole doped systems, the chemical potential is found to be pinned near the singularity, when the electron-electron interactions are repulsive. The RG treatment of the leading divergences appearing in perturbation theory give rise to marginal behavior and anisotropic superconductivity.

4 Latex pages + 5 postcript figures

References in corpus (4)

• Renormalization Group Approach to Interacting Fermions
• Resistivity as a function of temperature for models with hot spots on the Fermi surface.
• Antiferromagnetic and van Hove Scenarios for the Cuprates: Taking the Best of Both Worlds
• Renormalization Group and Fermi Liquid Theory

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