Perfect reflection of chiral fermions in gated graphene nanoribbons.
We describe the results of a theoretical study of transport through gated metallic graphene nanoribbons using a nonequilibrium Green function method. Although analogies with quantum field theory predict perfect transmission of chiral fermions through gated regions in one dimension, we find perfect reflection of chiral fermions in armchair ribbons for specific configurations of the gate. This effect should be measurable in narrow graphene constrictions gated by a charged carbon nanotube.
Kinder
Jesse M
JM
Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850, USA. jesse.kinder@gmail.com
Dorando
Jonathan J
JJ
Wang
Haitao
H
Chan
Garnet Kin-Lic
GK