Magnetic induction dependence of the dispersion of magnetoplasmon in a two-dimensional electron gas with finite layer thickness

TL;DR

This paper investigates how magnetic induction affects the dispersion of magnetoplasmons in a finite-thickness two-dimensional electron gas, providing theoretical results that align with experimental observations.

Contribution

It introduces a theoretical calculation of magnetoplasmon dispersion considering finite layer thickness and magnetic field dependence, matching experimental data.

Findings

Two magnetoplasmon modes identified.

Dispersion results agree with experimental data.

Magnetic field significantly influences magnetoplasmon behavior.

Abstract

Magnetic induction dependence of the dispersion of longitudinal magnetoplasmon in a two-dimensional electron gas with finite layer thickness under a static uniform magnetic field normal to the layer plane is calculated using the self-consistent linear response approximation. Two longitudinal magnetoplasmon modes are obtained. The calculated dispersion agrees with the experiment by Batke {\it et al.} [Phys. Rev. B {\bf 34}, 6951 (1986)].