Effect of strong electron correlations on the electron-phonon coupling in high Tc superconductors. Barišić, S. & Tutiš, E. Solid State Communications, 87(6):557-561, 1993. ![Effect of strong electron correlations on the electron-phonon coupling in high Tc superconductors [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website abstract bibtex It is shown that the strong electron-electron repulsion on copper suppresses the coupling of phonons to the copper-oxygen charge fluctuation for large charge transfer gap, in contrast to the coupling to the intracell oxygen-oxygen charge fluctuation, which remains undiminished. In addition, when the Fermi level approaches the van Hove singularity on doping the lattice fluctuation which couple to the oxygen-oxygen charge fluctuation is enhanced, irrespective of the value of the charge transfer gap. The relation with experimental observations is discussed. © 1993.
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abstract = {It is shown that the strong electron-electron repulsion on copper suppresses the coupling of phonons to the copper-oxygen charge fluctuation for large charge transfer gap, in contrast to the coupling to the intracell oxygen-oxygen charge fluctuation, which remains undiminished. In addition, when the Fermi level approaches the van Hove singularity on doping the lattice fluctuation which couple to the oxygen-oxygen charge fluctuation is enhanced, irrespective of the value of the charge transfer gap. The relation with experimental observations is discussed. © 1993.},
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author = {Barišić, Slaven and Tutiš, Eduard},
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