Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1997-03-24
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.
Mancini Ferdinando
Matsumoto Haru
Villani Daniela
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