Raman scattering in high temperature superconductors : An integrated view

TL;DR

This paper analyzes Raman scattering data across various high-temperature superconductors, demonstrating that non-Fermi liquid models with specific mechanisms can qualitatively explain their normal and superconducting states.

Contribution

It provides an integrated view showing how non-Fermi liquid models can account for Raman data in diverse high-temperature superconductors.

Findings

Raman data features are common across different high-Tc materials.

Non-Fermi liquid models effectively explain the normal state Raman spectra.

Bag mechanisms are relevant for understanding the superconducting state.

Abstract

The common features in the Raman data of high temperature superconductors: (the cuprates, bismathates, alkali doped fullerides and some organic superconductors), are analyzed. It was shown that qualitative understanding of the data can be achieved in terms of non-Fermi liquid models for their normal state, with appropiate bag mechanisms for the superconducting state.