Robust Dirac Point in Honeycomb Structure Nanoribbons with Zigzag Edges

TL;DR

This study demonstrates that doping at zigzag edges of honeycomb nanoribbons induces a robust Dirac point, offering a promising platform for material design and electronic applications.

Contribution

It reveals that doping at zigzag edges creates a stable Dirac point in honeycomb nanoribbons, a novel finding for edge-engineered electronic properties.

Findings

Robust Dirac points observed after doping at zigzag edges.

Dirac point is a common feature in honeycomb nanoribbons with proper edge sites.

Potential for new material design platforms.

Abstract

The zigzag edge graphene nanoribbon, which is an antiferromagnetic insulator, is found from the density-function theory calculation to display a robust Dirac point after N and B doping at the zigzag edge. More interestingly, we found that the robust Dirac point is a common feature of the honeycomb structure nanoribbon with appropriate edge sites. The zigzag edge honeycomb nanoribbon is therefore expected to provide a very useful platform for material design and development.