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

Author： Weber C.   Yee C.   Haule K.   Kotliar G.  

Publisher： Edp Sciences

E-ISSN： 1286-4854|100|3|37001-37001

ISSN： 0295-5075

Source： EPL (EUROPHYSICS LETTERS), Vol.100, Iss.3, 2012-11, pp. : 37001-37001

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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 Tc,max 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 Tc,max, resolving a long-standing contradiction with theoretical calculations.

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