Angle-Resolved Photoemission Spectroscopy on Electronic Structure and Electron-Phonon Coupling in Cuprate Superconductors

TL;DR

This review summarizes recent ARPES studies revealing complex, doping- and momentum-dependent electron-phonon interactions in cuprate superconductors, highlighting their interplay with electron-electron interactions.

Contribution

It provides a comprehensive overview of how ARPES has advanced understanding of electron-phonon coupling in cuprates beyond traditional models.

Findings

Electron-phonon interaction shows strong doping dependence.

Interaction exhibits momentum and phonon symmetry dependence.

Complex interplay with electron-electron interactions is observed.

Abstract

This treatise reviews latest results obtained from angle-resolved photoemission spectroscopy (ARPES) on cuprate superconductors, with a special focus on the electron-phonon interaction. What has emerged is rich information about the anomalous electron-phonon interaction well beyond the traditional views of the subject. It exhibits strong doping, momentum and phonon symmetry dependence, and shows complex interplay with the strong electron-electron interaction in these materials.