Antiferromagnetic fluctuations in the superconducting phase of low- and high-temperature superconductors

TL;DR

This paper reviews recent experimental evidence showing that antiferromagnetic fluctuations are a universal feature in the superconducting phase of both low- and high-temperature superconductors, linking pseudogap phenomena to magnetic fluctuations.

Contribution

It demonstrates the consistent development of antiferromagnetic fluctuations in the superconducting phase across different superconductor types and relates pseudogap characteristics to magnetic properties.

Findings

Antiferromagnetic fluctuations are present in all studied superconductors.

A relationship between pseudogap magnitude and its opening temperature is established.

Estimated pseudogap opening temperature for metal superconductors.

Abstract

Based on recent experimental results for electron-doped cuprate oxides and ferromagnetic superconductors, it is shown that antiferromagnetic fluctuations always develop in the superconducting phase of both low- and high-temperature superconductors. The relation between the magnitude of the antiferromagnetic pseudogap and the characteristic temperature of the antiferromagnetic pseudogap opening is obtained. The characteristic temperature of the antiferromagnetic pseudogap opening for metal superconductors is estimated.