On a mechanism of high-temperature superconductivity: Spin-electron acoustic wave as a mechanism for the Cooper pair formation

TL;DR

This paper proposes a new mechanism for high-temperature superconductivity based on spin-electron acoustic waves facilitating Cooper pair formation, which could explain superconductivity at temperatures much higher than traditional phonon-based mechanisms.

Contribution

It introduces a novel high-temperature superconductivity mechanism involving spin-electron acoustic waves in highly spin-polarized metals, surpassing electron-phonon transition temperatures.

Findings

Transition temperatures are up to 100 times higher than phonon-based mechanisms.

Strong dependence of transition temperature on electron concentration and spin polarization.

Applicable to ferromagnetic, ferrimagnetic, and antiferromagnetic materials.

Abstract

We have found the mechanism of the electron Cooper pair formation via the electron interaction by means of the spin-electron acoustic waves. This mechanism takes place in metals with rather high spin polarization, like ferromagnetic, ferrimagnetic and antiferromagnetic materials. The spin-electron acoustic wave mechanism leads to transition temperatures 100 times higher than the transition temperature allowed by the electron-phonon interaction. Therefore, spin-electron acoustic waves give the explanation for the high-temperature superconductivity. We find that the transition temperature has strong dependence on the electron concentration and the spin polarization of the electrons.