Robustness of the van Hove scenario for high-Tc superconductors

Details Robustness of the van Hove scenario for high-Tc superconductors Robustness of the van Hove scenario for high-Tc superconductors

2001-10-24

arxiv.org/abs/cond-mat/0110516v2

Phys. Rev. Lett. 89, 076401 (2002)

Physics

Condensed Matter

4 pages, LaTeX, 3 figures

Scientific paper

10.1103/PhysRevLett.89.076401

The pinning of the Fermi level to the van Hove singularity and the formation of flat bands in the two-dimensional t-t' Hubbard model is investigated by the renormalization group technique. The "van-Hove" scenario of non-Fermi-liquid behavior for high-Tc compounds can take place in a broad enough range of the hole concentrations. The results are in qualitative agreement with the recent ARPES data on La2CuO4.

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