Forward Electron-Phonon Scattering and HTS
Abstract
Tunneling and point contact spectroscopy show clear phonon features and together with optic measurements give strong support that the electron-phonon interaction (EPI) is large in HTS oxides. Strong correlations in HTS oxides renormalize the EPI (and interaction with impurities) so that the forward scattering peak (FSP) develops for small hole doping δ<<1. The FSP mechanism explains important properties of the normal and superconducting state.
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