TITLE

Generation of valley polarized current in bilayer graphene

AUTHOR(S)
Abergel, D. S. L.; Chakraborty, Tapash
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/10/2009, Vol. 95 Issue 6, p062107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
43720397

 

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