High-Tc superconductivity originated from strong spin-charge correlation: indication from linear temperature dependence of resistivity

TL;DR

This paper proposes that high-temperature superconductivity arises from strong spin-charge correlations, which also cause the linear temperature dependence of resistivity observed near optimal doping in cuprate and iron-based superconductors.

Contribution

The study provides a theoretical calculation linking strong spin-charge correlation to both linear resistivity and high-Tc superconductivity, offering a new mechanism explanation.

Findings

Linear temperature dependence of resistivity is caused by strong spin-charge correlation.

High-Tc superconductivity is induced by strong spin-charge correlation.

Theoretical results align with experimental observations in cuprate and Fe-based superconductors.

Abstract

Both the highest- and the linear temperature dependence of the resistivity in wide temperature range appear at the optimally doped regions of Cu-based superconductors1,2,3,4,5, and the highest- of Fe-based superconductors6,7 are also associated with the linear temperature dependence of the resistivity in normal states near superconducting states. This means that the high temperature superconductivity and the linear temperature dependence of the resistivity should be dominated by the same mechanism. This letter on theoretic calculation clearly shows that strong spin-charge correlation dominated resistivity behaves the linear temperature dependence, thus high-temperature superconductivity should be induced by strong spin-charge correlation.