How large can be SDW and CDW apmlitudes in underdoped cuprates

Physics – Condensed Matter – Superconductivity

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4 pages with 4 figures, submitted to Appl.Magn.Res., Proceedings of Specialized Colloque AMPERE, Pisa, 1999

Scientific paper

Self-consistent calculation of spin (charge) density wave order (SDW/CDW) parameters have been performed for bilayered cuprates on the basis of a singlet correlated band model. Evolution of the Fermi surface in the strongly underdoped regime is described by using a two-band approach. The smooth development of the pseudogap formation temperature is explained from underdoped to overdoped states and the Fourier amplitudes (spin) and (charge) modulations have been calculated. We have found a maximum of the incommensurability for doping 0.09-0.11 holes per copper site.

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