Reversal of Klein reflection in bilayer graphene
Mesoscale and Nanoscale Physics
2012-04-09 v1
Abstract
Whereas massless Dirac fermions in monolayer graphene exhibit Klein tunneling when passing through a potential barrier upon normal incidence, such a barrier totally reflects massive Dirac fermions in bilayer graphene due to difference in chirality. We show that, in the presence of magnetic barriers, such massive Dirac fermions can have transmission through even at normal incidence. The general consequence of this behaviour for multilayer graphene consisting of massless and massive modes are mentioned. We also briefly discuss the effect of a bias voltage on such magnetotransport.
Keywords
Cite
@article{arxiv.1106.0408,
title = {Reversal of Klein reflection in bilayer graphene},
author = {Neetu Agrawal and Sameer Grover and Sankalpa Ghosh and Manish Sharma},
journal= {arXiv preprint arXiv:1106.0408},
year = {2012}
}
Comments
10 double space single column latexed pages, 15 eps files in four figures