Pseudospin Splitting of the Energy Spectrum of Planar Polytype Graphene-Based Superlattices

TL;DR

This paper investigates the energy spectrum of planar polytype graphene superlattices and reveals that pseudospin splitting occurs due to asymmetrical quantum wells in the superlattice potential.

Contribution

It demonstrates the occurrence of pseudospin splitting in the energy spectrum caused by asymmetry in quantum well structures within graphene superlattices.

Findings

Pseudospin splitting occurs in the energy spectrum.

Asymmetry of quantum wells causes the splitting.

Energy spectrum is significantly affected by superlattice potential asymmetry.

Abstract

The energy spectrum of planar polytype graphene-based superlattices has been investigated. It is shown that their energy spectrum undergoes pseudospin splitting due to the asymmetry of quantum wells forming the superlattice potential profile.