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arXiv · 1108.3028

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

Cédric Weber·Chuck-Hou Yee·Kristjan Haule·Gabriel Kotliar
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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.

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Cédric Weber, Chuck-Hou Yee, Kristjan Haule, Gabriel Kotliar. 2012-10-22. Scaling of the transition temperature of hole-doped cuprate superconductors with the charge-transfer energy. https://doi.org/10.1209/0295-5075%2F100%2F37001

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