Conduction-electron spin resonance in two-dimensional structures

TL;DR

This paper investigates how conduction-electron spin magnetization in a two-dimensional electron layer affects electromagnetic wave transmission and reflection, proposing a matching method to evaluate wave amplitudes and absorption.

Contribution

It introduces a novel wave matching approach for quasi-two-dimensional electron gases in the one-mode state considering spin magnetization effects.

Findings

Calculated transmitted and reflected wave amplitudes.

Derived absorption coefficient for the 2D electron layer.

Provided a method for wave matching in 2D electron systems.

Abstract

The infuence of the conduction-electron spin magnetization density, induced in a two-dimensional electron layer by a microwave electromagnetic field, on the rejection and transmission of the field is considered. Because of the induced magnetization and electric current, both the electric and magnetic components of the field should have jumps on the layer. A way to match the waves on two sides of the layer, valid when the quasi-two-dimensional electron gas is in the one-mode state, is proposed. By following this way, the amplitudes of transmitted and rejected waves as well as the absorption coefficient are evaluated.