Impact of Optical Modes on the Pairing Potential in Bilayer Cuprates

Details Impact of Optical Modes on the Pairing Potential in Bilayer Cuprates Impact of Optical Modes on the Pairing Potential in Bilayer Cuprates

2004-04-30

arxiv.org/abs/cond-mat/0404735v1

Bulletin of the Russian Academy of Sciences: Physics, Vol. 62, No. 8, pp. 1228-1230 (1998)

Physics

Condensed Matter

Superconductivity

3 pages, 1 figure

Scientific paper

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 2$\Delta_{max}/k_B T_C \simeq 4.5$ is close to the experiment in the case of optimum doping.

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