Incommensurate magnetism in cuprate materials

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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.
4 pages, 5 figures in one Postscript file, RevTeX

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Strongly Correlated Electrons, Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/151745

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9703207
 http://arxiv.org/abs/cond-mat/9703207
 Phys. Rev. B 57, 6145 (1998)
 doi:10.1103/PhysRevB.57.6145

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arXiv