The Symmetries of the Order Parameters for Pairing and Phase Coherence in Hole-Doped Cuprates

TL;DR

This paper analyzes experimental data on hole-doped cuprates to determine the symmetries of the order parameters responsible for pairing and phase coherence, concluding that phase coherence has d-wave symmetry and pairing has anisotropic s-wave symmetry.

Contribution

It provides a detailed analysis of multiple experimental techniques to identify the distinct symmetries of order parameters in hole-doped cuprates, clarifying their roles in superconductivity.

Findings

Phase coherence OP has d-wave symmetry.

Pairing OP has anisotropic s-wave symmetry.

Experimental data supports different symmetries for pairing and phase coherence.

Abstract

The symmetries of the order parameter (OP) responsible for pairing and the OP responsible for phase coherence in hole-doped cuprates are discussed. We analyze angle-resolved tunneling, ARPES, Raman scattering and torque measurements performed on hole-doped cuprates. We conclude that, most likely, the OP responsible for phase coherence has the d-wave symmetry whereas the OP responsible for pairing has an anisotropic s-wave symmetry.