Infrared and electronic Raman response of coexisting d-wave density wave and d-wave superconductivity

TL;DR

This paper presents mean-field calculations of optical and Raman responses in quasi-2D systems with coexisting d-wave density wave and d-wave superconductivity, considering impurity effects relevant to zinc-doped cuprates.

Contribution

It provides a theoretical analysis of optical and Raman properties in systems with coexisting d-wave density wave and superconductivity, including impurity scattering effects.

Findings

Frequency dependence of correlation functions in coexisting phase

Impurity scattering effects on optical and Raman responses

Relevance to zinc-doped cuprate superconductors

Abstract

We present mean-field calculations for the in-plane optical conductivity, the superfluid density, and the electronic Raman susceptibility in quasi two-dimensional systems possessing a ground state with two competing order parameters: d-wave density wave (dDW) and d-wave superconductor (dSC). In the coexisting dDW+dSC phase we calculate the frequency dependence of these correlation functions in the presence of impurity scattering in the unitary limit, relevant to zinc-doped cuprate superconductors.