Symmetry Considerations for the Detection of Second-Harmonic Generation in Cuprates in the Pseudogap phase

TL;DR

This paper proposes a method to detect time-reversal and inversion symmetry breaking in cuprate pseudogap phases by analyzing second-harmonic generation variations with temperature, polarization, and incidence angle.

Contribution

It introduces a novel experimental approach to identify symmetry-breaking phases in cuprates using second-harmonic generation measurements.

Findings

Second-harmonic intensity varies with temperature and polarization.

Method can distinguish symmetry-breaking phases.

Provides a new tool for pseudogap phase investigation.

Abstract

A proposal to test the proposed time-reversal and inversion breaking phase in the Pseudogap region of the Cuprate compounds through the variation of Second-harmonic generation intensity with temperature and polarization and angle of incidence is presented.