Spin-electron acoustic waves: The Landau damping and ion contribution in the spectrum

TL;DR

This paper develops a quantum kinetic theory for spin-electron acoustic waves, incorporating ion dynamics and Landau damping, providing a more detailed spectrum analysis than previous hydrodynamic models.

Contribution

It introduces a separated spin-up and spin-down quantum kinetic framework to analyze spin-electron acoustic waves with ion contributions and damping effects.

Findings

Quantum kinetics yield detailed wave spectra including quantum state occupation effects.

Ion dynamics significantly influence Landau damping in the wave spectrum.

Analysis of ion contributions in various plasma wave regimes.

Abstract

Separated spin-up and spin-down quantum kinetics is derived for more detailed research of the spin-electron acoustic waves. Kinetic theory allows to obtain spectrum of the spin-electron acoustic waves including effects of occupation of quantum states more accurately than quantum hydrodynamics. We apply quantum kinetic to calculate the Landau damping of the spin-electron acoustic waves. We have considered contribution of ions dynamics in the spin-electron acoustic wave spectrum. We obtain contribution of ions in the Landau damping in temperature regime of classic ions. Kinetic analysis for ion-acoustic, zero sound, and Langmuir waves at separated spin-up and spin-down electron dynamics is presented as well.