Impact of Optical Modes on the Pairing Potential in Bilayer Cuprates
Larionov, I. A. · Eremin, M. V.
Original · EN
Superconducting transition temperature is calculated for differently doped bilayer cuprates. Superexchange is assumed to be the dominating mechanism of high-temperature superconductivity, but the contribution from the phonon potential is not negligible, which qualitatively explains the observed weak isotopic effect. The calculated value 2Δmax/kB TC ≃ 4.5 is close to the experiment in the case of optimum doping.
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