Tunneling of Graphene Massive Dirac Fermions through a Double Barrier

TL;DR

This paper investigates how massive Dirac fermions in graphene tunnel through a double barrier, focusing on the effects of an induced energy gap and resonant tunneling conditions.

Contribution

It introduces a model for tunneling of massive Dirac fermions in graphene with a substrate-induced gap, analyzing transmission and resonant tunneling phenomena.

Findings

Massive Dirac fermions exhibit modified tunneling behavior.

Energy gap influences transmission probabilities.

Resonant tunneling conditions are identified.

Abstract

We study the tunneling of Dirac fermions in graphene through a double barrier potential allowing the carriers to have an effective mass inside the barrier as generated by a lattice miss-match with the boron nitride substrate. The consequences of this gap opening on the transmission are investigated. The realization of resonant tunneling conditions is also analyzed.