The quantum effects of the spin and the Bohm potential in the oblique propagation of magnetosonic waves

TL;DR

This paper investigates how quantum effects, specifically the Bohm potential and electron spin, influence the propagation of magnetosonic waves in a quantum magnetoplasma, revealing that quantum contributions vary with propagation angle.

Contribution

It introduces a comprehensive fluid model incorporating both Bohm potential and electron spin effects to analyze magnetosonic wave dispersion in quantum plasmas.

Findings

Quantum effects alter the dispersion relation of magnetosonic waves.

Quantum contributions depend on the propagation angle.

The model highlights the significance of spin and Bohm potential in plasma wave dynamics.

Abstract

We study the quantum corrections to the oblique propagation of the magnetosonic waves in a warm quantum magnetoplasma composed by mobile ions and electrons. We use a fluid formalism to include quantum corrections due to the Bohm potential and to magnetization energy of electrons due to its spin. The effects of both quantum corrections are shown in the dispersion relation for perpendicular, parallel and oblique propagation. We find that the quantum contributions to the low-frequency depends on the type of propagation we are studying.