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.
@article{arxiv.1004.3465,
title = {Robust Dirac Point in Honeycomb Structure Nanoribbons with Zigzag Edges},
author = {Bo Xu and Jiang Yin and Hongming Weng and Yidong Xia and Xiangang Wan and Zhiguo Liu},
journal= {arXiv preprint arXiv:1004.3465},
year = {2015}
}