On the Dispersion Relation of Magnetoplasmons in a Planar Graphene-Based Superlattice

TL;DR

This paper derives the dispersion relation for magnetoplasmons in a graphene-based superlattice with alternating gapless and gapped regions, considering inter- and intra-miniband virtual transitions within the random-phase approximation.

Contribution

It provides a novel derivation of the magnetoplasmon dispersion relation in a superlattice with periodic gap variations, including detailed transition contributions.

Findings

Derived the dispersion relation within the random-phase approximation.

Included contributions from inter- and intra-miniband virtual transitions.

Enhanced understanding of plasmon behavior in graphene superlattices.

Abstract

The dispersion relation for magnetoplasmons in a planar superlattice with periodically alternating regions of gapless and gapped modications of graphene has been derived within the frame of the random-phase approximation. The contribution of virtual transitions between the lower electron miniband and the upper hole miniband to the polarization operator has been taken into account in addition to the contribution of virtual intra-miniband transitions.