Anisotropic Electron-Phonon Coupling Uncovered By Angle-Resolved Photoemission

TL;DR

This paper reviews ARPES evidence highlighting the significance of anisotropic electron-phonon coupling in high-temperature superconductors, challenging traditional views on the role of phonons in these materials.

Contribution

It uncovers the anisotropic nature of electron-phonon interactions in cuprates using ARPES data, emphasizing their importance in high-temperature superconductivity.

Findings

Evidence of electron coupling to specific phonon modes in cuprates

Anisotropic electron-phonon interactions are significant in high-Tc superconductors

Challenges traditional beliefs about electron-phonon interactions in these materials

Abstract

Recently there has been an accumulation of experimental evidence in the high temperature superconductors suggesting the relevance of electron-phonon coupling in these materials. These findings challenge some well-held beliefs of what electron-phonon interactions can and cannot do. In this article we review evidence primarily from angle-resolved photoemission (ARPES) measurements which point out the importance of electronic coupling to certain phonon modes in the cuprates.