Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-05-27
Applied Physics Letters 95, 062107 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 3 colour figures. Published version. Journal reference is Applied Physics Letters 95, 062107 (2009)
Scientific paper
10.1063/1.3205117
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.
Abergel D. S. L.
Chakraborty Tapash
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