Physics – Condensed Matter – Superconductivity
Scientific paper
2001-09-18
Physics
Condensed Matter
Superconductivity
Invited paper to the SNS 2001 Sixth International Conference on "Spectroscopies of Novel Superconductors" - Chicago, May 13-17
Scientific paper
10.1016/S0022-3697(02)00234-2
Within the Hubbard-Holstein model with long-range Coulomb forces, we revisit the charge-ordering scenario for the superconducting cuprates and account for the presence or the absence of a formed stripe phase in different classes of cuprates. We also evaluate the mean-field and the fluctuation-corrected critical lines for charge ordering and we relate them with the various pseudogap crossover lines occurring in the cuprates and we discuss a mechanism for their peculiar isotopic dependence. Considering the dynamical nature of the charge-ordering transition, we explain the spread of T* and of its isotopic shift, obtained with experimental probes with different characteristic time scales.
Caprara Sergio
Castro Carlo Di
Grilli Marco
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