Comment on "Influence of Pair Breaking and Phase Fluctuations on Disordered High Tc Cuprate Superconductors"

TL;DR

This paper demonstrates that considering both nonmagnetic and magnetic scatterers, along with a non-pure d-wave order parameter, can quantitatively explain the suppression of superconductivity in irradiated Y-123 crystals without invoking phase fluctuations.

Contribution

It shows that a combined scattering effect and a non-pure d-wave order parameter suffice to explain experimental data, challenging the need for phase fluctuation explanations.

Findings

Quantitative agreement with experimental Tc suppression data

No need to invoke phase fluctuations for explaining suppression

Highlights importance of combined scatterers and order parameter symmetry

Abstract

It is shown that an account for combined effect of both nonmagnetic and magnetic scatterers on Tc and/or an assumption about a non-pure d-wave order parameter allows for a quantitative explanation of the experimental data on the electron irradiation-induced suppression of superconductivity in Y-123 single crystals within the AG-like pair breaking theory, without resorting to phase fluctuations effects.