Incommensurate magnetism in cuprate materials

Details Incommensurate magnetism in cuprate materials Incommensurate magnetism in cuprate materials

1997-03-24

arxiv.org/abs/cond-mat/9703207v1

Phys. Rev. B 57, 6145 (1998)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures in one Postscript file, RevTeX

Scientific paper

10.1103/PhysRevB.57.6145

In the low doping region an incommensurate magnetic phase is observed in LSCO. By means of the composite operator method we show that the single-band 2D Hubbard model describes the experimental situation. In the higher doping region, where experiments are not available, the incommensurability is depressed owing to the van Hove singularity near the Fermi level. A proportionality between the incommensurability amplitude and the critical temperature is predicted, suggesting a close relation between superconductivity and incommensurate magnetism.

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