Generation of valley polarized current in bilayer graphene
Mesoscale and Nanoscale Physics
2009-08-20 v2
Abstract
We propose a device for the generation of valley polarized electronic current in bilayer graphene. By analyzing the response of this material to intense terahertz frequency light in the presence of a transverse electric field, we demonstrate that dynamical states are induced in the gapped energy region, and if the system parameters are properly tuned, these states exist only in one valley. The valley polarized states can then be used to filter an arbitrary electron current, so generating a valley polarized current.
Keywords
Cite
@article{arxiv.0905.4522,
title = {Generation of valley polarized current in bilayer graphene},
author = {D. S. L. Abergel and Tapash Chakraborty},
journal= {arXiv preprint arXiv:0905.4522},
year = {2009}
}
Comments
4 pages, 3 colour figures. Published version. Journal reference is Applied Physics Letters 95, 062107 (2009)