Properties of electrons near a Van Hove singularity
Strongly Correlated Electrons
2009-11-07 v1
Abstract
The Fermi surface of most hole-doped cuprates is close to a Van Hove singularity at the M point. A two-dimensional electronic system, whose Fermi surface is close to a Van Hove singularity shows a variety of weak coupling instabilities. It is a convenient model to study the interplay between antiferromagnetism and anisotropic superconductivity. The renormalization group approach is reviewed with emphasis on the underlying physical processes. General properties of the phase diagram and possible deformations of the Fermi surface due to the Van Hove proximity are described.
Keywords
Cite
@article{arxiv.cond-mat/0204257,
title = {Properties of electrons near a Van Hove singularity},
author = {M. A. H. Vozmediano and J. Gonzalez and F. Guinea and J. V. Alvarez and B. Valenzuela},
journal= {arXiv preprint arXiv:cond-mat/0204257},
year = {2009}
}
Comments
Proceedings of SNS-01 to appear in the Journal of Physics and Chemistry of Solids, SNS-01