Electromagnetic waves reflection, transmission and absorption by graphene - magnetic semiconductor - graphene sandwich-structure in magnetic field: Faraday geometry

TL;DR

This paper provides a theoretical analysis of how electromagnetic waves interact with a graphene-magnetic semiconductor-graphene sandwich structure, revealing how external magnetic fields can control its reflective, transmissive, and absorptive properties.

Contribution

It introduces a theoretical model for the electrodynamic behavior of the sandwich structure, considering dissipation and size effects, and demonstrates controllability via magnetic fields.

Findings

Graphene layers significantly influence wave propagation.

External magnetic fields can effectively control electromagnetic properties.

Size and thickness affect reflectance, transmittance, and absorption.

Abstract

Electrodynamic properties of the graphene - magnetic semiconductor - graphene sandwich-structure have been investigated theoretically with taking into account the dissipation processes. Influence of graphene layers on electromagnetic waves propagation in graphene - semi-infinte magnetic semiconductor and graphene - magnetic semiconductor - graphene sandwich-structure has been analyzed. Frequency and field dependences of the reflectance, transmittance and absorbtance of electromagnetic waves by such structure have been calculated. The size effects associated with the thickness of the structure have been analyzed. The possibility of efficient control of electrodynamic properties of graphene - magnetic semiconductor - graphene sandwich structure by an external magnetic field has been shown.