Superconducting, ferromagnetic and antiferromagnetic phases in the t-t' Hubbard model
Strongly Correlated Electrons
2009-10-30 v1 Superconductivity
Abstract
We apply a renormalization group approach to the determination of the phase diagram of the t-t' Hubbard model at the Van Hove filling, as function of t'/t, for small values of U/t. The model presents ferromagnetic, antiferromagnetic and d-wave superconducting phases. Antiferromagnetism and d-wave superconductivity arise from the same interactions, and compete in the same region of parameter space.
Keywords
Cite
@article{arxiv.cond-mat/9705165,
title = {Superconducting, ferromagnetic and antiferromagnetic phases in the t-t' Hubbard model},
author = {J. V. Alvarez and J. Gonzalez and F. Guinea and M. A. H. Vozmediano},
journal= {arXiv preprint arXiv:cond-mat/9705165},
year = {2009}
}
Comments
5 pages, revtex, 4 postscript figures in separate files