paper

Scaling of the transition temperature of hole-doped cuprate superconductors with the charge-transfer energy

arXiv:1108.3028 · doi:10.1209/0295-5075/100/37001

Abstract

We use first-principles calculations to extract two essential microscopic parameters, the charge-transfer energy and the inter-cell oxygen-oxygen hopping, which correlate with the maximum superconducting transition temperature $\Tcmax$ across the cuprates. We explore the superconducting state in the three-band model of the copper-oxygen planes using cluster Dynamical Mean-Field Theory. We find that the variation in the charge-transfer energy largely accounts for the empirical trend in $\Tcmax$, resolving a long-standing contradiction with theoretical calculations.

5 pages, 5 figures; Supplementary Material 5 pages, 2 figures

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