Electronic Raman Scattering in Nearly Antiferromagnetic Fermi Liquids

TL;DR

This paper develops a theoretical framework for electronic Raman scattering in nearly antiferromagnetic Fermi liquids, explaining experimental spectra features in overdoped cuprates through hot spot effects and scaling regimes.

Contribution

It introduces a phenomenological interaction model to describe Raman spectra, emphasizing the role of hot spots and addressing different scaling behaviors in the normal state.

Findings

The theory explains symmetry-dependent Raman spectra features.

Hot spots significantly influence spectral signatures.

Scaling regimes are identified and characterized.

Abstract

A theory of electronic Raman scattering in nearly antiferromagnetic Fermi liquids is constructed using the phenomenological electron-electron interaction introduced by Millis, Monien, and Pines. The role of "hot spots" and their resulting signatures in the channel dependent Raman spectra is highlighted, and different scaling regimes are addressed. The theory is compared to Raman spectra taken in the normal state of overdoped Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$, and it is shown that many features of the symmetry dependent spectra can be explained by the theory.