New electromagnetic mode in graphene.
A new, weakly damped, transverse electromagnetic mode is predicted in graphene. The mode frequency omega lies in the window 1.667<[see text]omega/micro < 2, where micro is the chemical potential, and can be tuned from radio waves to the infrared by changing the density of charge carriers through a gate voltage.
Institut für Physik, Universität Augsburg, D-86135 Augsburg, Germany. sergey.mikhailov@physik.uni-augsburg.de
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